My car is 10 years old and the black rubber seal on the back windshield is fading a bit, plus it has what look like rust stains, even though I don't see any rust on the metal. What product would not only preserve the seal but also blacken it and remove the stains? So far I'm considering Formula 303, Forever Black, and Back to Black. I've heard that Back to Black runs off in the rain. Would any of these also be good for the interior rubber seals around the doors and windows?

7/5/2008 12:42:15 PM

formula 303 is one of the few products that will preserve seals. you can lube seals with grease, which helps with sticking, but that's it.

forever black and black to black are temp cosmetic solutions.

[Edited on July 5, 2008 at 1:30 PM. Reason : g]

7/5/2008 1:28:09 PM

you need to use spray silicone for rubber weatherstripping. this is different from armor all or tire shine, and helps keep the seals pliable and soft, not just keep them from sticking. 303 is great UV protection for stuff that gets a lot of exposure and the like, probably good for preserving the rear window seal you speak of. however to restore it, I would suggest posting a picture of it so we can see how bad it really is. there are different ways to address faded stuff. sometimes a little attention with a heat gun will bring the oils back to the surface and make it look new again. sometimes its just too faded and you need to re-dye it. shoe polish companies make a black rubber dye for restoring the soles on shoes, this works very well in some cases. forever black and back to black work well on a temporary basis but will streak from rain and need frequent re application.

7/5/2008 2:12:58 PM

Quote :

"you need to use spray silicone for rubber weatherstripping."

honda uses a specific grease for their weatherstripping/seals.

7/6/2008 12:29:19 AM

i use shin etsu grease on all the rubber seals of my convertible top.

it's sold by honda for just that purpose.

7/6/2008 11:21:55 AM

does that honda grease crap actually make the seals look darker for any period of time (like Back to Black)? I've got fading seals on both of my cars.

7/6/2008 2:08:06 PM