Side impact rubber restoration tips ??

So I'm looking to restore a set of rms rubbers back to factory grey...I remember using a duplicolor flexible bumper paint years ago which worked great on the bumper section....but quickly wrinkled up on the side impact pieces as they expand/contract with the temp. changes

Wondering if there is a better way?

Do the 95s have the plastic "chrome" trim, or the metal trim?

yes, 95-96 have the full perimeter abs plastic chrome which goes into the bumpers as well

92-94 has the same stainless as wagons and the bumpers have a real heavy duty bumper trim with an abs inner structure wrapped with a polished stainless skin and metal studs for the nuts to attach

95-96 have BS plastic studs which usually snap-off when removing

Would Mothers Back to Black work?
I would imagine reapplication would be necessary every so often but I've had good results with it on MGB rubber bumpers.

No, this is on roadmaster sedan with grey impact strips

So I'm looking for a grey paint that wont wrinkle up...I know this probably impossible

I would suggest that you stop at a body shop supply store. Some stores will put pre thinned automotive paint into a spray can, custom mixed to the color you want. It will be much more expensive than something from Home Depot, (maybe $20 per spray can or so) but it will be professional body shop quality that will last several years if prepped correctly.

Auto body suppliers carry “flex additive” for use in both single stage and two stage polyurethane paints. The primary use of these additives is for refinishing flexible bumpers. I’m guessing that this would not be available in custom mixed spry cans, as these are added “in the cup” just prior to spraying, and may have a limited “pot life.

A disadvantage then, would be that your moldings would have to be painted with a spray gun. Another is that they will usually change the color of the paint slightly, but not much.  This may not be much of an issue with your moldings.

A friend that has been spraying for many years, however, refuses to use it, due to the very slight tint change. He sprays the bumpers without it, and claims to have never seen a problem from the normal bumper flexing, using “base coat/clear coat” polyurethane.

How about SEM paint? It's made for plastic and leather and flexes.

https://www.semproducts.com/product/trim-black/black

https://www.amazon.com/SEM-39143-Trim-Black-Aerosol/dp/B000EM019O

Tom