EXHIBIT 99.4

                                 MILACRON INC.

                               OFFER TO EXCHANGE
               UP TO $225,000,000 PRINCIPAL AMOUNT OUTSTANDING OF
                     11 1/2% SENIOR SECURED NOTES DUE 2011
                                      FOR
                           A LIKE PRINCIPAL AMOUNT OF
                     11 1/2% SENIOR SECURED NOTES DUE 2011
          WHICH HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933
             PURSUANT TO THE PROSPECTUS, DATED               , 2004

To: Brokers, Dealers, Commercial Banks, Trust Companies and Other Nominees:

     Milacron Inc., a Delaware corporation (the "Company"), hereby offers to
exchange (the "Exchange Offer"), upon and subject to the terms and conditions
set forth in the Prospectus dated           , 2004 (the "Prospectus") and the
enclosed letter of transmittal (the "Letter of Transmittal"), up to $225,000,000
aggregate principal amount of registered 11 1/2% Senior Secured Notes due 2011
of the Company, which will be freely transferable (the "Exchange Notes"), for
any and all of the Company's outstanding 11 1/2% Senior Secured Notes due 2011,
which have certain transfer restrictions (the "Original Notes"). The Exchange
Offer is intended to satisfy certain obligations of the Company contained in the
Registration Rights Agreement dated as of May 26, 2004, among Milacron Escrow
Corporation and Credit Suisse First Boston LLC, as representative of the several
purchasers listed therein, which Milacron Inc. and the guarantors listed therein
entered into pursuant to a Joinder dated May 26, 2004.

     We are requesting that you contact your clients for whom you hold Original
Notes regarding the Exchange Offer. For your information and for forwarding to
your clients for whom you hold Original Notes registered in your name or in the
name of your nominee, or who hold Original Notes registered in their own names,
we are enclosing the following documents:

          1. Prospectus dated           , 2004;

          2. The Letter of Transmittal for your use and for the information of
     your clients;

          3. A Notice of Guaranteed Delivery to be used to accept the Exchange
     Offer if certificates for Original Notes are not immediately available or
     time will not permit all required documents to reach U.S. Bank National
     Association (the "Exchange Agent") prior to the Expiration Date (as defined
     below) or if the procedure for book-entry transfer cannot be completed on a
     timely basis;

          4. A form of letter which may be sent to your clients for whose
     account you hold Original Notes registered in your name or the name of your
     nominee, with space provided for obtaining such clients' instructions with
     regard to the Exchange Offer;

          5. Guidelines for Certification of Taxpayer Identification Number on
     Substitute Form W-9; and

          6. Return envelopes addressed to U.S. Bank National Association, the
     Exchange Agent for the Exchange Offer.

     YOUR PROMPT ACTION IS REQUESTED. THE EXCHANGE OFFER WILL EXPIRE AT 5:00
P.M., NEW YORK CITY TIME, ON           , 2004 (THE "EXPIRATION DATE"), UNLESS
EXTENDED BY THE COMPANY. ANY ORIGINAL NOTES TENDERED PURSUANT TO THE EXCHANGE
OFFER MAY BE WITHDRAWN AT ANY TIME PRIOR TO 5:00 P.M., NEW YORK CITY TIME, ON
THE EXPIRATION DATE.

     To participate in the Exchange Offer, a duly executed and properly
completed Letter of Transmittal (or facsimile thereof or a message from The
Depository Trust Company stating that the tendering holder has expressly
acknowledged receipt of, and agreement to be bound by and held accountable
under, the Letter of Transmittal), with any required signature guarantees, and
any other documents required by the Letter of Transmittal, must be sent to the
Exchange Agent


and certificates representing the Original Notes must be delivered to the
Exchange Agent, all in accordance with the instructions set forth in the Letter
of Transmittal and the Prospectus.

     If holders of Original Notes wish to tender but it is impracticable for
them to forward their certificates for Original Notes prior to the expiration of
the Exchange Offer or to comply with the book-entry transfer procedures on a
timely basis, a tender may be effected by following the guaranteed delivery
procedures described in the Prospectus under "The Exchange Offer -- Guaranteed
Delivery Procedures."

     Any inquiries you may have with respect to the Exchange Offer or requests
for additional copies of the enclosed materials should be directed to the
Exchange Agent for the Original Notes, at its address and telephone number set
forth on the front of the Letter of Transmittal.

                                         Very truly yours,

                                         Milacron Inc.

NOTHING HEREIN OR IN THE ENCLOSED DOCUMENTS SHALL CONSTITUTE YOU OR ANY OTHER
PERSON AS AN AGENT OF THE COMPANY OR THE EXCHANGE AGENT, OR AUTHORIZE YOU OR ANY
OTHER PERSON TO USE ANY DOCUMENT OR MAKE ANY STATEMENTS ON BEHALF OF ANY OF THEM
WITH RESPECT TO THE EXCHANGE OFFER, EXCEPT FOR STATEMENTS EXPRESSLY MADE IN THE
PROSPECTUS OR THE LETTER OF TRANSMITTAL.

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