I do sell a product I call Rubber Rejuvenator. It is concentrated, therefore clings. I scrub the seal with water soluble degreaser. It takes the oxidized layer off easily. Where rubber gloves, it turns black instantly. A tip, when removing seals from your car. Let the sun (preferably 70, 80 deg.) directly warm the seal for several hours before removing glass. For a vent seal, let the frame set in the sun, then gently pull out of the retainer grove. If the rubber piece is cracked or brittle, there is no hope. Needs to have a little flexibility. You want 100 % coverage for best results. I soak small parts in plastic bags. For large seals, someone mentioned Saran wrap. You can also make a tube from long strips of plastic sheet, 4 to 6 mil. You staple at top to close the tube, then dilute the Rubber Rejuvenator with water, 3 or 4 to one and pour into the tube. A week will show improvement. I prefer a few weeks or more. You cannot leave soaking to long. I have grommets that have soaked for 5 years. That long and all the nutrients will have absorbed into the rubber leaving a sticky paste behind. Warm soapy water is used to clean off after treatment. I have treated the following items: glass seals, fire wall grommets, tie rod and ball joint boots, windshield washer foot pad and water bulb, brake booster bellows, steering column mast seal and seal at carpet. Any rubber can be treated. 16 oz. concentrate, $20 less 10%. Includes extra 16 oz. squeeze bottle and sponge applicator for topical treatment. Dilute 6 or 8 to 1 for topical use. After restoration it is excellent for tires and all rubber. Thank you, Gary, the parts doc Reno, Nevada 89521 USA The Biggest Little City In The World Mail: garythepartsdoc@xxxxxxxxxxxx 775 851-1420 -----Original Message----- From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx]On Behalf Of yelof@xxxxxxxx Sent: Sunday, February 06, 2011 8:43 AM To: chrysler300@xxxxxxxxxxxxxxx Subject: Re: [Chrysler300] softening windscren rubbers & a 60 'how to?' question I believe it is Gary The Parts Doctor that has a concoction of his own that works good. MN Marshall > 1) Sorry to ask, but what was the simple stuff you rub into old > windscreen rubber/rubber, to soften it up a bit? Know it has been > mentioned before. [Non-text portions of this message have been removed] ------------------------------------ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to bob@xxxxxxxxxxxxx or go to http://autos.groups.yahoo.com/group/Chrysler300/join and select the "Leave Group" button For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/search.htm#querylangYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: Chrysler300-digest@xxxxxxxxxxxxxxx Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/