Silicone-treated polyester film

Rick Dzupina <rdzupina<-a t->interlog< . >com> writes

>I have been searching for information about silicone-treated mylar,
>specifically whether the silicone, when it is applied to the mylar,
>becomes cross-linked to the mylar substrate, or rests on the
>surface, to deteriorate at some time down the road.

Conservator's Products Company, both in the U.S. and Canada stock a
Mylar(r) (polyester) film which is manufactured specifically for the
art conservation market and not available elsewhere. It is silicone
coated on one side only, is a very thin 0.5 mils thick (1.27
microns), is 63" wide, and comes in lengths of 20 yards and 50
yards.

Dr. George Chludzinski of CPC describes the silicone coating as a UV
(ultra-violet) cured,  cross-linked polymer. Since it does not
"rest" on the surface it will not rub off, however, as with all
materials over time will exhibit normal wear.

Laszlo Cser
Restorart Inc./Conservator's Products Company of Canada

                                  ***
                  Conservation DistList Instance 11:13
                  Distributed: Friday, August 1, 1997
                       Message Id: cdl-11-13-005
                                  ***