EXHIBIT 99.4

                                  Airgas, Inc.

                       Offer for any and all Outstanding
                   9.125% Senior Subordinated Notes due 2011
                                in Exchange for
              Registered 9.125% Senior Subordinated Notes due 2011

To Our Clients:

    Enclosed for your consideration is a Prospectus, dated       , 2001 (the
"Prospectus"), and the enclosed Letter of Transmittal (the "Letter of
Transmittal"), relating to the offer (the "Exchange Offer") of Airgas, Inc.
(the "Company") to exchange its 9.125% Senior Subordinated Notes due 2011,
which have been registered under the Securities Act of 1933, as amended, for
its outstanding 9.125% Senior Subordinated Notes due 2011 (the "Old Notes"),
upon the terms and subject to the conditions described in the Prospectus. The
Exchange Offer is being made in order to satisfy certain obligations of the
Company contained in the Registration Rights Agreement dated as of July 30,
2001 among the Company, the guarantors referred to therein and the initial
purchasers referred to therein.

    This material is being forwarded to you as the beneficial owner of the Old
Notes carried by us in your account but not registered in your name. A tender
of such Old Notes may only be made by us as the holder of record and pursuant
to your instructions.

    Accordingly, we request instructions as to whether you wish us to tender on
your behalf the Old Notes held by us for your account, pursuant to the terms
and conditions set forth in the enclosed Prospectus and Letter of Transmittal.

    Your instructions should be forwarded to us as promptly as possible in
order to permit us to tender the Old Notes on your behalf in accordance with
the provisions of the Exchange Offer. The Exchange Offer will expire at 12:00
(midnight), New York City time, on , 2001 (the "Expiration Date") (20 business
days following the commencement of the Exchange Offer) unless extended by the
Company. Any Old Notes tendered pursuant to the Exchange Offer may be withdrawn
at any time before 12:00 (midnight), New York City time, on the Expiration
Date.

    Your attention is directed to the following:

      1. The Exchange Offer is for any and all Old Notes.

      2. The Exchange Offer is subject to certain conditions set forth in
  the Prospectus in the section captioned "The Exchange Offer--Conditions to
  the Exchange Offer."

      3. The Exchange Offer expires at 12:00 (midnight), New York City time,
  on the Expiration Date, unless extended by the Company.

    If you wish to tender your Old Notes, please so instruct us by completing,
executing and returning to us the instruction form on the back of this letter.
The Letter of Transmittal is furnished to you for information only and may not
be used directly by you to tender Old Notes.


                          INSTRUCTIONS WITH RESPECT TO
                               THE EXCHANGE OFFER

    The undersigned acknowledge(s) receipt of your letter and the enclosed
material referred to therein relating to the Exchange Offer made by MacDermid,
Incorporated with respect to its Old Notes.

    This will instruct you to tender the Old Notes held by you for the account
of the undersigned, upon and subject to terms and conditions set forth in the
Prospectus and the related Letter of Transmittal.

    Please tender the Old Notes held by you for my account as indicated below:



                                            Aggregate Principal Amount of Old Notes
                                            ---------------------------------------

                                         
9.125% Senior Subordinated Notes due 2011..
                                          ------------------------------------------
                                            (must be an integral multiple of $1,000)



[_] Please do not tender any Old Notes
    held by you for my account.


Dated: ______________________________, 2001


                                                      Signature(s)
                                          -------------------------------------
                                          -------------------------------------
                                          -------------------------------------
                                                Please print name(s) here
                                          -------------------------------------
                                          -------------------------------------
                                                       Address(es)
                                          -------------------------------------
                                          Area Code(s) and Telephone Number(s)
                                          -------------------------------------
                                              Tax Identification or Social
                                                     Security No(s).

    None of the Old Notes held by us for your account will be tendered unless
we receive written instructions from you to do so. Unless a specific contrary
instruction is given in the space provided, your signature(s) hereon shall
constitute an instruction to us to tender all the Old Notes held by us for your
account.