Joe - 

The problem is that the EPDM roller material decomposes, little by little, as
a result of contact with peroxide/sulfuric etchant chemistry.  You can call
Mr. Saad Nakhla at (800) 321-9050 X 181 or Mike Carano at X 104 and they can
give you details on the right materials to choose to replace EPDM.  I believe
it's a high density polyethylene that you want.

Chem cleaning is probably the best all around cleaning process for innerlayer
surface prep but I've seen EPDM rollers cause this problem in more than one
installation.  Good Luck.

Roger Mouton

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