Autopia Thread quote: Glass `Rubber` Seals
The seals on automobile are no longer made from natural rubber. Auto manufacturers use a specialized synthetic material called EPDM, (ethylene propylene diene monomer). Natural rubber or blends that contain rubber cannot endure the direct exposure to ultra violet radiation (UV) and oxidation.
EPDM has extremely poor resistance to solvents and oils. Do not use a cleaner or any chemical product that contains oils or Dimethalsilicone (DMS) usually a clear greasy liquid, which leaves a never-dry gloss film, as most contain petroleum distillate solvents that are that are incompatible with EPDM.
Exterior - For dull or faded seals or window mouldings- remove imbedded white stains in vinyl and rubber mouldings; first wipe the mouldings with a multi-purpose cleaner. P21S Total Auto Wash or 1z Plastik Reiniger (Deep Cleaner) both products are excellent for this task. This removes any wax / polish / silicone debris and dissolves surface stains.
Protection - with 1z einszett Vinyl Rubber Care & Potectant "Tiefenpfleger? provides a temperature-resistant seal and a low-shine matte finish Dust-resistant and retards the fading effects of UV rays to keep exterior ?rubber? and vinyl looking like new. Apply (every three months) with a micro fibre towel or applicator pad and give the trim a quick once over.
Interior - The soft seals around doors, windows, sunroofs, hood and trunk are constantly being flexed and compressed all the while being subjected to a hostile environment. Use a product that contains glycerine (Iz enzett Gummi Pflege or Zymol Seal) a natural plant anti-oxidizing agent, it will prolong the useful life of the seal by restoring the original moisture and resist tearing and sticking
For dull or faded ?rubber? (EPDM) seals or window mouldings: along the top edge of the door, where the window enters and exits the door there is a gasket, fully roll down the window and use a micro fibre towel and clean in between the rubber seals on both sided of the window. The inside edge of this gasket is usually felt lined and can/will pick up contaminations (oil / grease) as the window is operated. Be sure to clean the inner gasket edge thoroughly at the same time you`re cleaning the guides.
