RobHJ Posted July 13, 2018 Report Share Posted July 13, 2018 The windscreen rubber (inside the car) on my GT6 has a yellow "crust" that doesn't look too good. I read somewhere that old brake fluid was good for cleaning and keeping rubber flexible and wondered if it might work. Any thoughts or better ideas? Thanks Rob Link to comment Share on other sites More sharing options...
Pete Lewis Posted July 14, 2018 Report Share Posted July 14, 2018 The old school trick on rubber or plastic was to use swarfeaga Think the yellow is caused by an ozone reaction Pete Link to comment Share on other sites More sharing options...
thescrapman Posted July 14, 2018 Report Share Posted July 14, 2018 My TR6 screen rubber went bright golden yellow over at LeMans last weekend. I put it down to the very bright sun and high temps Link to comment Share on other sites More sharing options...
JohnD Posted July 14, 2018 Report Share Posted July 14, 2018 "Back to Black"? Simonise spray. john Link to comment Share on other sites More sharing options...
RobHJ Posted July 14, 2018 Author Report Share Posted July 14, 2018 Thanks for the ideas. Will give Swarfega a go first - sounds a safer option than smearing brake fluid around.... Cheers Link to comment Share on other sites More sharing options...
Andrew Posted July 15, 2018 Report Share Posted July 15, 2018 Hello my window surround went yellow bought back to life with auto glum tyre dressing, after all both are rubber steve Link to comment Share on other sites More sharing options...
RobHJ Posted July 15, 2018 Author Report Share Posted July 15, 2018 Ah good idea and I think I have some of that somewhere.... Cheers Link to comment Share on other sites More sharing options...
Andrew Posted July 15, 2018 Report Share Posted July 15, 2018 Rob spray auto glimmer into a jar. Brush on. Let it stay on for about a minute and then wipe of. Do every day for a week steve Link to comment Share on other sites More sharing options...
RobHJ Posted July 18, 2018 Author Report Share Posted July 18, 2018 Hi all. Happy to report that Swarfega worked like magic ? Before and after photos here: Cheers Rob Link to comment Share on other sites More sharing options...
Pete Lewis Posted July 18, 2018 Report Share Posted July 18, 2018 Another case of the old ones are the best Pleased it worked ok Pete Link to comment Share on other sites More sharing options...
Mark B Posted December 2, 2018 Report Share Posted December 2, 2018 HI all I bought a new screen seal for the Vitesse several years ago, kept in a bag in the back of a lock-up, now ready to fit. There is a whitish yellow chalky discoloration formed on the surface, so tried swarfega. I can rub the coating off with my finger and rolls and scrapes off with bits everywhere. When dry, I get the same chalky surface appearing. Didn't want to have to buy another rubber, but it's looking that way. I've had track rod end rubbers, side window seals fall apart during the admittedly long restoration, and the cars not even left the lock up yet. Any suggestions what I could try to rejuvinate the seal before I bin it? Thanks Mark Link to comment Share on other sites More sharing options...
RobHJ Posted December 2, 2018 Author Report Share Posted December 2, 2018 It might be worth trying a small section with brake fluid. I've seen several discussions (links below) where it's been tried, along with some alternatives, including the wonderfully named Gummi Pflege. https://motorcyclerestorationproject.blogspot.com/2013/08/the-results-of-my-test-using-brake.html https://www.practicalmachinist.com/vb/general/ot-what-can-i-use-clean-restore-old-rubber-161342/ http://forums.sohc4.net/index.php?topic=21280.0 Cheers Rob Link to comment Share on other sites More sharing options...
Mark B Posted December 3, 2018 Report Share Posted December 3, 2018 Hi Rob Thanks for all the links, a good mix of ideas. Mark Link to comment Share on other sites More sharing options...
Colin Lindsay Posted December 3, 2018 Report Share Posted December 3, 2018 On 15/07/2018 at 22:46, Andrew said: auto glum tyre dressing Used to use that, but it made me sad... Fairy Liquid used to be the stuff for yellow rubber but full of salt so eats paintwork. Turtlewax have a good gel for it: 'Black in a Flash', I've done a search online and it seems to have changed packaging recently but works well. Link to comment Share on other sites More sharing options...
Pete Lewis Posted December 3, 2018 Report Share Posted December 3, 2018 Stick to swarfega who wants brake fluid near the paintwork however carefull you are Pete Link to comment Share on other sites More sharing options...
Clive Posted December 3, 2018 Report Share Posted December 3, 2018 I will suggest using a solvent on a cloth. Something like white spirit should remove the very surface of the rubber leaving a fresh, clean look. Treat with some sort of dressing for protection.... If white spirit doesn't do it, brake cleaner or cellulose thinners certainly will.. Link to comment Share on other sites More sharing options...
Herald948 Posted December 3, 2018 Report Share Posted December 3, 2018 Correct me if I'm wrong, but this "yellow" or "white" (or whatever) residue is remaining mould-release compound, is it not? Link to comment Share on other sites More sharing options...
Pete Lewis Posted December 4, 2018 Report Share Posted December 4, 2018 yes i believe so, not helped by whats in the sky Pete Link to comment Share on other sites More sharing options...
Mark B Posted December 4, 2018 Report Share Posted December 4, 2018 HI all After a lot of elbow grease and a combination of a silicon lubricant spray and a micro fibre cloth, I have been able to remove the skin formed on the surface of the rubber. I ran out of silicon so carefully used cellulose thinners as I know it will turn rubber to goo if left on long enough. It even came off just using a cloth if rubbing in one spot long enough to get the rubber hot but a lot of effort. I think any solution, I even used furniture polish acts as a lubricant and it is the friction and heat generated, using the right type of cloth, didn't work as well with a smooth cotton cloth, but the bobbly micro fibre, grabbed the skin an roller it off. Good Couple of hours effort, but as they are £45 odd now, worth the effort and satisfaction that didn't have to buy it twice. Thanks all Mark Link to comment Share on other sites More sharing options...
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