POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the undersigned does hereby make, constitute and appoint Richard R. Russell, William C. Keightley, Todd M. DuChene, Matthew Walsh and Michael R. Herman, and each of them, with full power to act without the other, his or her true and lawful attorney-in-fact and agent, in his or her name, place and stead to execute on his or her behalf, as an officer and/or director of GenTek Inc. ("GenTek") and/or any of the Subsidiary Guarantors (as defined below, and together with GenTek, the "Registrants"), as the case may be, the Registration Statement of the Registrants on Form S-4 (the "Registration Statement"), for the registration of up to $200,000,000 aggregate principal amount of 11% Senior Subordinated Notes due 2009 to be issued by GenTek and of the full and unconditional guarantee thereof by the Subsidiary Guarantors in exchange for the existing 11% Senior Subordinated Notes due 2009 issued by GenTek and guaranteed by the Subsidiary Guarantors, and any and all amendments (including post-effective amendments) to the Registration Statement, and file the same with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission (the "SEC") pursuant to the Securities Act of 1933, as amended (the "Act"), and any and all other instruments which either of said attorneys-in-fact and agents deem necessary or advisable to enable Registrants to comply with the Act, the rules, regulations and requirements of the SEC in respect thereof, and the securities or Blue Sky laws of any state or other governmental subdivision, giving and granting to each of said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing whatsoever necessary or appropriate to be done in and about the premises as fully to all intents as he or she might or could do if personally present at the doing thereof, with full power of substitution and resubstitution, hereby ratifying and confirming all that his or her said attorney-in-fact and agents or substitutes may or shall lawfully do or cause to be done by virtue hereof. "Subsidiary Guarantors" means General Chemical Corporation, Toledo Technologies Inc., Printing Developments Inc., Balcrank Products Inc., HMC Patents Holding Company Inc., Waterside Urban Renewal Corporation, Reheis Inc., Defiance, Inc., Binderline Draftline, Inc., Defiance Precision Products, Inc., Hy-Form Products, Inc., Defiance Testing and Engineering Services, Inc., Noma Corporation, PCT Mexico Corporation, Noma O.P. Inc., Electronic Interconnect Systems Inc., Defiance Kinematics Inc., HN Investment Holdings Inc. and PPI Holdings, Inc. IN WITNESS WHEREOF, the undersigned has hereunto set his hand on the date indicated below: /s/ Richard R. Russell November 17, 1999 - --------------------------------------- Richard R. Russell POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the undersigned does hereby make, constitute and appoint Richard R. Russell, William C. Keightley, Todd M. DuChene, Matthew Walsh and Michael R. Herman, and each of them, with full power to act without the other, his or her true and lawful attorney-in-fact and agent, in his or her name, place and stead to execute on his or her behalf, as an officer and/or director of GenTek Inc. ("GenTek") and/or any of the Subsidiary Guarantors (as defined below, and together with GenTek, the "Registrants"), as the case may be, the Registration Statement of the Registrants on Form S-4 (the "Registration Statement"), for the registration of up to $200,000,000 aggregate principal amount of 11% Senior Subordinated Notes due 2009 to be issued by GenTek and of the full and unconditional guarantee thereof by the Subsidiary Guarantors in exchange for the existing 11% Senior Subordinated Notes due 2009 issued by GenTek and guaranteed by the Subsidiary Guarantors, and any and all amendments (including post-effective amendments) to the Registration Statement, and file the same with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission (the "SEC") pursuant to the Securities Act of 1933, as amended (the "Act"), and any and all other instruments which either of said attorneys-in-fact and agents deem necessary or advisable to enable Registrants to comply with the Act, the rules, regulations and requirements of the SEC in respect thereof, and the securities or Blue Sky laws of any state or other governmental subdivision, giving and granting to each of said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing whatsoever necessary or appropriate to be done in and about the premises as fully to all intents as he or she might or could do if personally present at the doing thereof, with full power of substitution and resubstitution, hereby ratifying and confirming all that his or her said attorney-in-fact and agents or substitutes may or shall lawfully do or cause to be done by virtue hereof. "Subsidiary Guarantors" means General Chemical Corporation, Toledo Technologies Inc., Printing Developments Inc., Balcrank Products Inc., HMC Patents Holding Company Inc., Waterside Urban Renewal Corporation, Reheis Inc., Defiance, Inc., Binderline Draftline, Inc., Defiance Precision Products, Inc., Hy-Form Products, Inc., Defiance Testing and Engineering Services, Inc., Noma Corporation, PCT Mexico Corporation, Noma O.P. Inc., Electronic Interconnect Systems Inc., Defiance Kinematics Inc., HN Investment Holdings Inc. and PPI Holdings, Inc. IN WITNESS WHEREOF, the undersigned has hereunto set his hand on the date indicated below: /s/ William C. Keightley November 17, 1999 - --------------------------------------- William C. Keightley POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the undersigned does hereby make, constitute and appoint Richard R. Russell, William C. Keightley, Todd M. DuChene, Matthew Walsh and Michael R. Herman, and each of them, with full power to act without the other, his or her true and lawful attorney-in-fact and agent, in his or her name, place and stead to execute on his or her behalf, as an officer and/or director of GenTek Inc. ("GenTek") and/or any of the Subsidiary Guarantors (as defined below, and together with GenTek, the "Registrants"), as the case may be, the Registration Statement of the Registrants on Form S-4 (the "Registration Statement"), for the registration of up to $200,000,000 aggregate principal amount of 11% Senior Subordinated Notes due 2009 to be issued by GenTek and of the full and unconditional guarantee thereof by the Subsidiary Guarantors in exchange for the existing 11% Senior Subordinated Notes due 2009 issued by GenTek and guaranteed by the Subsidiary Guarantors, and any and all amendments (including post-effective amendments) to the Registration Statement, and file the same with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission (the "SEC") pursuant to the Securities Act of 1933, as amended (the "Act"), and any and all other instruments which either of said attorneys-in-fact and agents deem necessary or advisable to enable Registrants to comply with the Act, the rules, regulations and requirements of the SEC in respect thereof, and the securities or Blue Sky laws of any state or other governmental subdivision, giving and granting to each of said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing whatsoever necessary or appropriate to be done in and about the premises as fully to all intents as he or she might or could do if personally present at the doing thereof, with full power of substitution and resubstitution, hereby ratifying and confirming all that his or her said attorney-in-fact and agents or substitutes may or shall lawfully do or cause to be done by virtue hereof. "Subsidiary Guarantors" means General Chemical Corporation, Toledo Technologies Inc., Printing Developments Inc., Balcrank Products Inc., HMC Patents Holding Company Inc., Waterside Urban Renewal Corporation, Reheis Inc., Defiance, Inc., Binderline Draftline, Inc., Defiance Precision Products, Inc., Hy-Form Products, Inc., Defiance Testing and Engineering Services, Inc., Noma Corporation, PCT Mexico Corporation, Noma O.P. Inc., Electronic Interconnect Systems Inc., Defiance Kinematics Inc., HN Investment Holdings Inc. and PPI Holdings, Inc. IN WITNESS WHEREOF, the undersigned has hereunto set his hand on the date indicated below: /s/ Paul M. Montrone November 17, 1999 - --------------------------------------- Paul M. Montrone POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the undersigned does hereby make, constitute and appoint Richard R. Russell, William C. Keightley, Todd M. DuChene, Matthew Walsh and Michael R. Herman, and each of them, with full power to act without the other, his or her true and lawful attorney-in-fact and agent, in his or her name, place and stead to execute on his or her behalf, as an officer and/or director of GenTek Inc. ("GenTek") and/or any of the Subsidiary Guarantors (as defined below, and together with GenTek, the "Registrants"), as the case may be, the Registration Statement of the Registrants on Form S-4 (the "Registration Statement"), for the registration of up to $200,000,000 aggregate principal amount of 11% Senior Subordinated Notes due 2009 to be issued by GenTek and of the full and unconditional guarantee thereof by the Subsidiary Guarantors in exchange for the existing 11% Senior Subordinated Notes due 2009 issued by GenTek and guaranteed by the Subsidiary Guarantors, and any and all amendments (including post-effective amendments) to the Registration Statement, and file the same with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission (the "SEC") pursuant to the Securities Act of 1933, as amended (the "Act"), and any and all other instruments which either of said attorneys-in-fact and agents deem necessary or advisable to enable Registrants to comply with the Act, the rules, regulations and requirements of the SEC in respect thereof, and the securities or Blue Sky laws of any state or other governmental subdivision, giving and granting to each of said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing whatsoever necessary or appropriate to be done in and about the premises as fully to all intents as he or she might or could do if personally present at the doing thereof, with full power of substitution and resubstitution, hereby ratifying and confirming all that his or her said attorney-in-fact and agents or substitutes may or shall lawfully do or cause to be done by virtue hereof. "Subsidiary Guarantors" means General Chemical Corporation, Toledo Technologies Inc., Printing Developments Inc., Balcrank Products Inc., HMC Patents Holding Company Inc., Waterside Urban Renewal Corporation, Reheis Inc., Defiance, Inc., Binderline Draftline, Inc., Defiance Precision Products, Inc., Hy-Form Products, Inc., Defiance Testing and Engineering Services, Inc., Noma Corporation, PCT Mexico Corporation, Noma O.P. Inc., Electronic Interconnect Systems Inc., Defiance Kinematics Inc., HN Investment Holdings Inc. and PPI Holdings, Inc. IN WITNESS WHEREOF, the undersigned has hereunto set his hand on the date indicated below: /s/ Paul M. Meister November 17, 1999 - --------------------------------------- Paul M. Meister POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the undersigned does hereby make, constitute and appoint Richard R. Russell, William C. Keightley, Todd M. DuChene, Matthew Walsh and Michael R. Herman, and each of them, with full power to act without the other, his or her true and lawful attorney-in-fact and agent, in his or her name, place and stead to execute on his or her behalf, as an officer and/or director of GenTek Inc. ("GenTek") and/or any of the Subsidiary Guarantors (as defined below, and together with GenTek, the "Registrants"), as the case may be, the Registration Statement of the Registrants on Form S-4 (the "Registration Statement"), for the registration of up to $200,000,000 aggregate principal amount of 11% Senior Subordinated Notes due 2009 to be issued by GenTek and of the full and unconditional guarantee thereof by the Subsidiary Guarantors in exchange for the existing 11% Senior Subordinated Notes due 2009 issued by GenTek and guaranteed by the Subsidiary Guarantors, and any and all amendments (including post-effective amendments) to the Registration Statement, and file the same with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission (the "SEC") pursuant to the Securities Act of 1933, as amended (the "Act"), and any and all other instruments which either of said attorneys-in-fact and agents deem necessary or advisable to enable Registrants to comply with the Act, the rules, regulations and requirements of the SEC in respect thereof, and the securities or Blue Sky laws of any state or other governmental subdivision, giving and granting to each of said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing whatsoever necessary or appropriate to be done in and about the premises as fully to all intents as he or she might or could do if personally present at the doing thereof, with full power of substitution and resubstitution, hereby ratifying and confirming all that his or her said attorney-in-fact and agents or substitutes may or shall lawfully do or cause to be done by virtue hereof. "Subsidiary Guarantors" means General Chemical Corporation, Toledo Technologies Inc., Printing Developments Inc., Balcrank Products Inc., HMC Patents Holding Company Inc., Waterside Urban Renewal Corporation, Reheis Inc., Defiance, Inc., Binderline Draftline, Inc., Defiance Precision Products, Inc., Hy-Form Products, Inc., Defiance Testing and Engineering Services, Inc., Noma Corporation, PCT Mexico Corporation, Noma O.P. Inc., Electronic Interconnect Systems Inc., Defiance Kinematics Inc., HN Investment Holdings Inc. and PPI Holdings, Inc. IN WITNESS WHEREOF, the undersigned has hereunto set his hand on the date indicated below: /s/ John W. Gildea November 17, 1999 - --------------------------------------- John W. Gildea POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the undersigned does hereby make, constitute and appoint Richard R. Russell, William C. Keightley, Todd M. DuChene, Matthew Walsh and Michael R. Herman, and each of them, with full power to act without the other, his or her true and lawful attorney-in-fact and agent, in his or her name, place and stead to execute on his or her behalf, as an officer and/or director of GenTek Inc. ("GenTek") and/or any of the Subsidiary Guarantors (as defined below, and together with GenTek, the "Registrants"), as the case may be, the Registration Statement of the Registrants on Form S-4 (the "Registration Statement"), for the registration of up to $200,000,000 aggregate principal amount of 11% Senior Subordinated Notes due 2009 to be issued by GenTek and of the full and unconditional guarantee thereof by the Subsidiary Guarantors in exchange for the existing 11% Senior Subordinated Notes due 2009 issued by GenTek and guaranteed by the Subsidiary Guarantors, and any and all amendments (including post-effective amendments) to the Registration Statement, and file the same with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission (the "SEC") pursuant to the Securities Act of 1933, as amended (the "Act"), and any and all other instruments which either of said attorneys-in-fact and agents deem necessary or advisable to enable Registrants to comply with the Act, the rules, regulations and requirements of the SEC in respect thereof, and the securities or Blue Sky laws of any state or other governmental subdivision, giving and granting to each of said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing whatsoever necessary or appropriate to be done in and about the premises as fully to all intents as he or she might or could do if personally present at the doing thereof, with full power of substitution and resubstitution, hereby ratifying and confirming all that his or her said attorney-in-fact and agents or substitutes may or shall lawfully do or cause to be done by virtue hereof. "Subsidiary Guarantors" means General Chemical Corporation, Toledo Technologies Inc., Printing Developments Inc., Balcrank Products Inc., HMC Patents Holding Company Inc., Waterside Urban Renewal Corporation, Reheis Inc., Defiance, Inc., Binderline Draftline, Inc., Defiance Precision Products, Inc., Hy-Form Products, Inc., Defiance Testing and Engineering Services, Inc., Noma Corporation, PCT Mexico Corporation, Noma O.P. Inc., Electronic Interconnect Systems Inc., Defiance Kinematics Inc., HN Investment Holdings Inc. and PPI Holdings, Inc. IN WITNESS WHEREOF, the undersigned has hereunto set his hand on the date indicated below: /s/ Scott M. Sperling November 17, 1999 - --------------------------------------- Scott M. Sperling POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the undersigned does hereby make, constitute and appoint Richard R. Russell, William C. Keightley, Todd M. DuChene, Matthew Walsh and Michael R. Herman, and each of them, with full power to act without the other, his or her true and lawful attorney-in-fact and agent, in his or her name, place and stead to execute on his or her behalf, as an officer and/or director of GenTek Inc. ("GenTek") and/or any of the Subsidiary Guarantors (as defined below, and together with GenTek, the "Registrants"), as the case may be, the Registration Statement of the Registrants on Form S-4 (the "Registration Statement"), for the registration of up to $200,000,000 aggregate principal amount of 11% Senior Subordinated Notes due 2009 to be issued by GenTek and of the full and unconditional guarantee thereof by the Subsidiary Guarantors in exchange for the existing 11% Senior Subordinated Notes due 2009 issued by GenTek and guaranteed by the Subsidiary Guarantors, and any and all amendments (including post-effective amendments) to the Registration Statement, and file the same with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission (the "SEC") pursuant to the Securities Act of 1933, as amended (the "Act"), and any and all other instruments which either of said attorneys-in-fact and agents deem necessary or advisable to enable Registrants to comply with the Act, the rules, regulations and requirements of the SEC in respect thereof, and the securities or Blue Sky laws of any state or other governmental subdivision, giving and granting to each of said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing whatsoever necessary or appropriate to be done in and about the premises as fully to all intents as he or she might or could do if personally present at the doing thereof, with full power of substitution and resubstitution, hereby ratifying and confirming all that his or her said attorney-in-fact and agents or substitutes may or shall lawfully do or cause to be done by virtue hereof. "Subsidiary Guarantors" means General Chemical Corporation, Toledo Technologies Inc., Printing Developments Inc., Balcrank Products Inc., HMC Patents Holding Company Inc., Waterside Urban Renewal Corporation, Reheis Inc., Defiance, Inc., Binderline Draftline, Inc., Defiance Precision Products, Inc., Hy-Form Products, Inc., Defiance Testing and Engineering Services, Inc., Noma Corporation, PCT Mexico Corporation, Noma O.P. Inc., Electronic Interconnect Systems Inc., Defiance Kinematics Inc., HN Investment Holdings Inc. and PPI Holdings, Inc. IN WITNESS WHEREOF, the undersigned has hereunto set his hand on the date indicated below: /s/ Ira Stepanian November 17, 1999 - --------------------------------------- Ira Stepanian POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the undersigned does hereby make, constitute and appoint Richard R. Russell, William C. Keightley, Todd M. DuChene, Matthew Walsh and Michael R. Herman, and each of them, with full power to act without the other, his or her true and lawful attorney-in-fact and agent, in his or her name, place and stead to execute on his or her behalf, as an officer and/or director of GenTek Inc. ("GenTek") and/or any of the Subsidiary Guarantors (as defined below, and together with GenTek, the "Registrants"), as the case may be, the Registration Statement of the Registrants on Form S-4 (the "Registration Statement"), for the registration of up to $200,000,000 aggregate principal amount of 11% Senior Subordinated Notes due 2009 to be issued by GenTek and of the full and unconditional guarantee thereof by the Subsidiary Guarantors in exchange for the existing 11% Senior Subordinated Notes due 2009 issued by GenTek and guaranteed by the Subsidiary Guarantors, and any and all amendments (including post-effective amendments) to the Registration Statement, and file the same with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission (the "SEC") pursuant to the Securities Act of 1933, as amended (the "Act"), and any and all other instruments which either of said attorneys-in-fact and agents deem necessary or advisable to enable Registrants to comply with the Act, the rules, regulations and requirements of the SEC in respect thereof, and the securities or Blue Sky laws of any state or other governmental subdivision, giving and granting to each of said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing whatsoever necessary or appropriate to be done in and about the premises as fully to all intents as he or she might or could do if personally present at the doing thereof, with full power of substitution and resubstitution, hereby ratifying and confirming all that his or her said attorney-in-fact and agents or substitutes may or shall lawfully do or cause to be done by virtue hereof. "Subsidiary Guarantors" means General Chemical Corporation, Toledo Technologies Inc., Printing Developments Inc., Balcrank Products Inc., HMC Patents Holding Company Inc., Waterside Urban Renewal Corporation, Reheis Inc., Defiance, Inc., Binderline Draftline, Inc., Defiance Precision Products, Inc., Hy-Form Products, Inc., Defiance Testing and Engineering Services, Inc., Noma Corporation, PCT Mexico Corporation, Noma O.P. Inc., Electronic Interconnect Systems Inc., Defiance Kinematics Inc., HN Investment Holdings Inc. and PPI Holdings, Inc. IN WITNESS WHEREOF, the undersigned has hereunto set his hand on the date indicated below: /s/ Bruce Koepfgen November 17, 1999 - --------------------------------------- Bruce Koepfgen POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the undersigned does hereby make, constitute and appoint Richard R. Russell, William C. Keightley, Todd M. DuChene, Matthew Walsh and Michael R. Herman, and each of them, with full power to act without the other, his or her true and lawful attorney-in-fact and agent, in his or her name, place and stead to execute on his or her behalf, as an officer and/or director of GenTek Inc. ("GenTek") and/or any of the Subsidiary Guarantors (as defined below, and together with GenTek, the "Registrants"), as the case may be, the Registration Statement of the Registrants on Form S-4 (the "Registration Statement"), for the registration of up to $200,000,000 aggregate principal amount of 11% Senior Subordinated Notes due 2009 to be issued by GenTek and of the full and unconditional guarantee thereof by the Subsidiary Guarantors in exchange for the existing 11% Senior Subordinated Notes due 2009 issued by GenTek and guaranteed by the Subsidiary Guarantors, and any and all amendments (including post-effective amendments) to the Registration Statement, and file the same with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission (the "SEC") pursuant to the Securities Act of 1933, as amended (the "Act"), and any and all other instruments which either of said attorneys-in-fact and agents deem necessary or advisable to enable Registrants to comply with the Act, the rules, regulations and requirements of the SEC in respect thereof, and the securities or Blue Sky laws of any state or other governmental subdivision, giving and granting to each of said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing whatsoever necessary or appropriate to be done in and about the premises as fully to all intents as he or she might or could do if personally present at the doing thereof, with full power of substitution and resubstitution, hereby ratifying and confirming all that his or her said attorney-in-fact and agents or substitutes may or shall lawfully do or cause to be done by virtue hereof. "Subsidiary Guarantors" means General Chemical Corporation, Toledo Technologies Inc., Printing Developments Inc., Balcrank Products Inc., HMC Patents Holding Company Inc., Waterside Urban Renewal Corporation, Reheis Inc., Defiance, Inc., Binderline Draftline, Inc., Defiance Precision Products, Inc., Hy-Form Products, Inc., Defiance Testing and Engineering Services, Inc., Noma Corporation, PCT Mexico Corporation, Noma O.P. Inc., Electronic Interconnect Systems Inc., Defiance Kinematics Inc., HN Investment Holdings Inc. and PPI Holdings, Inc. IN WITNESS WHEREOF, the undersigned has hereunto set his hand on the date indicated below: /s/ Ralph M. Passino November 17, 1999 - --------------------------------------- Ralph M. Passino POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the undersigned does hereby make, constitute and appoint Richard R. Russell, William C. Keightley, Todd M. DuChene, Matthew Walsh and Michael R. Herman, and each of them, with full power to act without the other, his or her true and lawful attorney-in-fact and agent, in his or her name, place and stead to execute on his or her behalf, as an officer and/or director of GenTek Inc. ("GenTek") and/or any of the Subsidiary Guarantors (as defined below, and together with GenTek, the "Registrants"), as the case may be, the Registration Statement of the Registrants on Form S-4 (the "Registration Statement"), for the registration of up to $200,000,000 aggregate principal amount of 11% Senior Subordinated Notes due 2009 to be issued by GenTek and of the full and unconditional guarantee thereof by the Subsidiary Guarantors in exchange for the existing 11% Senior Subordinated Notes due 2009 issued by GenTek and guaranteed by the Subsidiary Guarantors, and any and all amendments (including post-effective amendments) to the Registration Statement, and file the same with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission (the "SEC") pursuant to the Securities Act of 1933, as amended (the "Act"), and any and all other instruments which either of said attorneys-in-fact and agents deem necessary or advisable to enable Registrants to comply with the Act, the rules, regulations and requirements of the SEC in respect thereof, and the securities or Blue Sky laws of any state or other governmental subdivision, giving and granting to each of said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing whatsoever necessary or appropriate to be done in and about the premises as fully to all intents as he or she might or could do if personally present at the doing thereof, with full power of substitution and resubstitution, hereby ratifying and confirming all that his or her said attorney-in-fact and agents or substitutes may or shall lawfully do or cause to be done by virtue hereof. "Subsidiary Guarantors" means General Chemical Corporation, Toledo Technologies Inc., Printing Developments Inc., Balcrank Products Inc., HMC Patents Holding Company Inc., Waterside Urban Renewal Corporation, Reheis Inc., Defiance, Inc., Binderline Draftline, Inc., Defiance Precision Products, Inc., Hy-Form Products, Inc., Defiance Testing and Engineering Services, Inc., Noma Corporation, PCT Mexico Corporation, Noma O.P. Inc., Electronic Interconnect Systems Inc., Defiance Kinematics Inc., HN Investment Holdings Inc. and PPI Holdings, Inc. IN WITNESS WHEREOF, the undersigned has hereunto set his hand on the date indicated below: /s/ Paul Kessler November 17, 1999 - ------------------------------- Paul Kessler POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the undersigned does hereby make, constitute and appoint Richard R. Russell, William C. Keightley, Todd M. DuChene, Matthew Walsh and Michael R. Herman, and each of them, with full power to act without the other, his or her true and lawful attorney-in-fact and agent, in his or her name, place and stead to execute on his or her behalf, as an officer and/or director of GenTek Inc. ("GenTek") and/or any of the Subsidiary Guarantors (as defined below, and together with GenTek, the "Registrants"), as the case may be, the Registration Statement of the Registrants on Form S-4 (the "Registration Statement"), for the registration of up to $200,000,000 aggregate principal amount of 11% Senior Subordinated Notes due 2009 to be issued by GenTek and of the full and unconditional guarantee thereof by the Subsidiary Guarantors in exchange for the existing 11% Senior Subordinated Notes due 2009 issued by GenTek and guaranteed by the Subsidiary Guarantors, and any and all amendments (including post-effective amendments) to the Registration Statement, and file the same with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission (the "SEC") pursuant to the Securities Act of 1933, as amended (the "Act"), and any and all other instruments which either of said attorneys-in-fact and agents deem necessary or advisable to enable Registrants to comply with the Act, the rules, regulations and requirements of the SEC in respect thereof, and the securities or Blue Sky laws of any state or other governmental subdivision, giving and granting to each of said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing whatsoever necessary or appropriate to be done in and about the premises as fully to all intents as he or she might or could do if personally present at the doing thereof, with full power of substitution and resubstitution, hereby ratifying and confirming all that his or her said attorney-in-fact and agents or substitutes may or shall lawfully do or cause to be done by virtue hereof. "Subsidiary Guarantors" means General Chemical Corporation, Toledo Technologies Inc., Printing Developments Inc., Balcrank Products Inc., HMC Patents Holding Company Inc., Waterside Urban Renewal Corporation, Reheis Inc., Defiance, Inc., Binderline Draftline, Inc., Defiance Precision Products, Inc., Hy-Form Products, Inc., Defiance Testing and Engineering Services, Inc., Noma Corporation, PCT Mexico Corporation, Noma O.P. Inc., Electronic Interconnect Systems Inc., Defiance Kinematics Inc., HN Investment Holdings Inc. and PPI Holdings, Inc. IN WITNESS WHEREOF, the undersigned has hereunto set his hand on the date indicated below: /s/ James N. Tanis November 17, 1999 - ------------------------------- James N. Tanis POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the undersigned does hereby make, constitute and appoint Richard R. Russell, William C. Keightley, Todd M. DuChene, Matthew Walsh and Michael R. Herman, and each of them, with full power to act without the other, his or her true and lawful attorney-in-fact and agent, in his or her name, place and stead to execute on his or her behalf, as an officer and/or director of GenTek Inc. ("GenTek") and/or any of the Subsidiary Guarantors (as defined below, and together with GenTek, the "Registrants"), as the case may be, the Registration Statement of the Registrants on Form S-4 (the "Registration Statement"), for the registration of up to $200,000,000 aggregate principal amount of 11% Senior Subordinated Notes due 2009 to be issued by GenTek and of the full and unconditional guarantee thereof by the Subsidiary Guarantors in exchange for the existing 11% Senior Subordinated Notes due 2009 issued by GenTek and guaranteed by the Subsidiary Guarantors, and any and all amendments (including post-effective amendments) to the Registration Statement, and file the same with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission (the "SEC") pursuant to the Securities Act of 1933, as amended (the "Act"), and any and all other instruments which either of said attorneys-in-fact and agents deem necessary or advisable to enable Registrants to comply with the Act, the rules, regulations and requirements of the SEC in respect thereof, and the securities or Blue Sky laws of any state or other governmental subdivision, giving and granting to each of said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing whatsoever necessary or appropriate to be done in and about the premises as fully to all intents as he or she might or could do if personally present at the doing thereof, with full power of substitution and resubstitution, hereby ratifying and confirming all that his or her said attorney-in-fact and agents or substitutes may or shall lawfully do or cause to be done by virtue hereof. "Subsidiary Guarantors" means General Chemical Corporation, Toledo Technologies Inc., Printing Developments Inc., Balcrank Products Inc., HMC Patents Holding Company Inc., Waterside Urban Renewal Corporation, Reheis Inc., Defiance, Inc., Binderline Draftline, Inc., Defiance Precision Products, Inc., Hy-Form Products, Inc., Defiance Testing and Engineering Services, Inc., Noma Corporation, PCT Mexico Corporation, Noma O.P. Inc., Electronic Interconnect Systems Inc., Defiance Kinematics Inc., HN Investment Holdings Inc. and PPI Holdings, Inc. IN WITNESS WHEREOF, the undersigned has hereunto set his hand on the date indicated below: /s/ Matthew Walsh November 17, 1999 - ------------------------------- Matthew Walsh POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the undersigned does hereby make, constitute and appoint Richard R. Russell, William C. Keightley, Todd M. DuChene, Matthew Walsh and Michael R. Herman, and each of them, with full power to act without the other, his or her true and lawful attorney-in-fact and agent, in his or her name, place and stead to execute on his or her behalf, as an officer and/or director of GenTek Inc. ("GenTek") and/or any of the Subsidiary Guarantors (as defined below, and together with GenTek, the "Registrants"), as the case may be, the Registration Statement of the Registrants on Form S-4 (the "Registration Statement"), for the registration of up to $200,000,000 aggregate principal amount of 11% Senior Subordinated Notes due 2009 to be issued by GenTek and of the full and unconditional guarantee thereof by the Subsidiary Guarantors in exchange for the existing 11% Senior Subordinated Notes due 2009 issued by GenTek and guaranteed by the Subsidiary Guarantors, and any and all amendments (including post-effective amendments) to the Registration Statement, and file the same with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission (the "SEC") pursuant to the Securities Act of 1933, as amended (the "Act"), and any and all other instruments which either of said attorneys-in-fact and agents deem necessary or advisable to enable Registrants to comply with the Act, the rules, regulations and requirements of the SEC in respect thereof, and the securities or Blue Sky laws of any state or other governmental subdivision, giving and granting to each of said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing whatsoever necessary or appropriate to be done in and about the premises as fully to all intents as he or she might or could do if personally present at the doing thereof, with full power of substitution and resubstitution, hereby ratifying and confirming all that his or her said attorney-in-fact and agents or substitutes may or shall lawfully do or cause to be done by virtue hereof. "Subsidiary Guarantors" means General Chemical Corporation, Toledo Technologies Inc., Printing Developments Inc., Balcrank Products Inc., HMC Patents Holding Company Inc., Waterside Urban Renewal Corporation, Reheis Inc., Defiance, Inc., Binderline Draftline, Inc., Defiance Precision Products, Inc., Hy-Form Products, Inc., Defiance Testing and Engineering Services, Inc., Noma Corporation, PCT Mexico Corporation, Noma O.P. Inc., Electronic Interconnect Systems Inc., Defiance Kinematics Inc., HN Investment Holdings Inc. and PPI Holdings, Inc. IN WITNESS WHEREOF, the undersigned has hereunto set his hand on the date indicated below: /s/ Todd M. DuChene November 17, 1999 - ------------------------------- Todd M. DuChene POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the undersigned does hereby make, constitute and appoint Richard R. Russell, William C. Keightley, Todd M. DuChene, Matthew Walsh and Michael R. Herman, and each of them, with full power to act without the other, his or her true and lawful attorney-in-fact and agent, in his or her name, place and stead to execute on his or her behalf, as an officer and/or director of GenTek Inc. ("GenTek") and/or any of the Subsidiary Guarantors (as defined below, and together with GenTek, the "Registrants"), as the case may be, the Registration Statement of the Registrants on Form S-4 (the "Registration Statement"), for the registration of up to $200,000,000 aggregate principal amount of 11% Senior Subordinated Notes due 2009 to be issued by GenTek and of the full and unconditional guarantee thereof by the Subsidiary Guarantors in exchange for the existing 11% Senior Subordinated Notes due 2009 issued by GenTek and guaranteed by the Subsidiary Guarantors, and any and all amendments (including post-effective amendments) to the Registration Statement, and file the same with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission (the "SEC") pursuant to the Securities Act of 1933, as amended (the "Act"), and any and all other instruments which either of said attorneys-in-fact and agents deem necessary or advisable to enable Registrants to comply with the Act, the rules, regulations and requirements of the SEC in respect thereof, and the securities or Blue Sky laws of any state or other governmental subdivision, giving and granting to each of said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing whatsoever necessary or appropriate to be done in and about the premises as fully to all intents as he or she might or could do if personally present at the doing thereof, with full power of substitution and resubstitution, hereby ratifying and confirming all that his or her said attorney-in-fact and agents or substitutes may or shall lawfully do or cause to be done by virtue hereof. "Subsidiary Guarantors" means General Chemical Corporation, Toledo Technologies Inc., Printing Developments Inc., Balcrank Products Inc., HMC Patents Holding Company Inc., Waterside Urban Renewal Corporation, Reheis Inc., Defiance, Inc., Binderline Draftline, Inc., Defiance Precision Products, Inc., Hy-Form Products, Inc., Defiance Testing and Engineering Services, Inc., Noma Corporation, PCT Mexico Corporation, Noma O.P. Inc., Electronic Interconnect Systems Inc., Defiance Kinematics Inc., HN Investment Holdings Inc. and PPI Holdings, Inc. IN WITNESS WHEREOF, the undersigned has hereunto set his hand on the date indicated below: /s/ Bodo B. Klink November 17, 1999 - ------------------------------- Bodo B. Klink POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the undersigned does hereby make, constitute and appoint Richard R. Russell, William C. Keightley, Todd M. DuChene, Matthew Walsh and Michael R. Herman, and each of them, with full power to act without the other, his or her true and lawful attorney-in-fact and agent, in his or her name, place and stead to execute on his or her behalf, as an officer and/or director of GenTek Inc. ("GenTek") and/or any of the Subsidiary Guarantors (as defined below, and together with GenTek, the "Registrants"), as the case may be, the Registration Statement of the Registrants on Form S-4 (the "Registration Statement"), for the registration of up to $200,000,000 aggregate principal amount of 11% Senior Subordinated Notes due 2009 to be issued by GenTek and of the full and unconditional guarantee thereof by the Subsidiary Guarantors in exchange for the existing 11% Senior Subordinated Notes due 2009 issued by GenTek and guaranteed by the Subsidiary Guarantors, and any and all amendments (including post-effective amendments) to the Registration Statement, and file the same with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission (the "SEC") pursuant to the Securities Act of 1933, as amended (the "Act"), and any and all other instruments which either of said attorneys-in-fact and agents deem necessary or advisable to enable Registrants to comply with the Act, the rules, regulations and requirements of the SEC in respect thereof, and the securities or Blue Sky laws of any state or other governmental subdivision, giving and granting to each of said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing whatsoever necessary or appropriate to be done in and about the premises as fully to all intents as he or she might or could do if personally present at the doing thereof, with full power of substitution and resubstitution, hereby ratifying and confirming all that his or her said attorney-in-fact and agents or substitutes may or shall lawfully do or cause to be done by virtue hereof. "Subsidiary Guarantors" means General Chemical Corporation, Toledo Technologies Inc., Printing Developments Inc., Balcrank Products Inc., HMC Patents Holding Company Inc., Waterside Urban Renewal Corporation, Reheis Inc., Defiance, Inc., Binderline Draftline, Inc., Defiance Precision Products, Inc., Hy-Form Products, Inc., Defiance Testing and Engineering Services, Inc., Noma Corporation, PCT Mexico Corporation, Noma O.P. Inc., Electronic Interconnect Systems Inc., Defiance Kinematics Inc., HN Investment Holdings Inc. and PPI Holdings, Inc. IN WITNESS WHEREOF, the undersigned has hereunto set his hand on the date indicated below: /s/ Grant Crandall November 17, 1999 - ------------------------------- Grant Crandall