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how to soften rubber for...........

Discussion in 'The Hokey Ass Message Board' started by banditomerc, Oct 4, 2011.

  1. banditomerc
    Joined: Dec 18, 2005
    Posts: 2,515

    banditomerc
    Member

    Windshield on my '47 Ford.It's rainy today here in L.A.,but I still want to stay on my to do list.If I throw the windshield rubber in the microwave oven will it soften?any suggestions?
     
  2. Ghostrider
    Joined: Mar 7, 2007
    Posts: 82

    Ghostrider
    Member

    I've used a bucket of hot water before...
     
  3. banditomerc
    Joined: Dec 18, 2005
    Posts: 2,515

    banditomerc
    Member

    Any other ideas?
     
  4. What's wrong with the bucket of hot water? Throw in some soap as a lubricant
     
  5. JimC
    Joined: Dec 13, 2002
    Posts: 2,243

    JimC
    Member
    from W.C.,Mo.

    Works.

    You could use a hair dryer, but be careful not to overheat.

    Keep the dryer moving, if you choose.
    And not too close, either!
     
  6. BadgeZ28
    Joined: Oct 28, 2009
    Posts: 1,191

    BadgeZ28
    Member
    from Oregon

    I would probably just soak it in a bucket of hot water and soap it to re-install.
     
  7. Ebbsspeed
    Joined: Nov 11, 2005
    Posts: 6,479

    Ebbsspeed
    ALLIANCE MEMBER

    One more vote for a bucket of hot water and dish soap for lube.
     
  8. I would be a little leary of microwaving rubber, strange things can happen when microwaving things that do not contain water (I do not know this from experience and have never microwaved unopened Dr. Pepper cans). Microwave heating is used commercially, but precisely controlled machinery is used. A bucket of hot, or even boiling water would not risk combustion. Your other option would be to turn down the oven as low as you can. Still, the hot water method would probably be easiest.
     
  9. banditomerc
    Joined: Dec 18, 2005
    Posts: 2,515

    banditomerc
    Member

    thanks guys .got it soaking now.
     
  10. jagfxr1949
    Joined: Jun 27, 2008
    Posts: 277

    jagfxr1949
    Member

    I have in the p***st used plain old paint remover - the really basic stuff - to re-soften old rubber sections. Around here Jasco is a brand that works. I have not found the paint removers to attack rubber parts.
     
  11. Bathtub, warm soapy water, and uh before the wife gets home, TR
     
  12. Ed Wrath
    Joined: Dec 24, 2008
    Posts: 310

    Ed Wrath
    Member

    Gibbs Brand Lubricant is very good for softening rubber.
     
  13. bobss396
    Joined: Aug 27, 2008
    Posts: 18,740

    bobss396
    Member

    I'd go with hot water alone, lots of luck wrestling a greased up gasket into a window opening. You can soap it up when you get ready to do the gl*** install.

    Bob
     
  14. banditomerc
    Joined: Dec 18, 2005
    Posts: 2,515

    banditomerc
    Member

    After finally installing my windshield,I found the best thing to soften the rubber up was good old sunlight.The hot water deal wäs ok to a certain point,but the heat of the sun worked best.
     
  15. jcmarz
    Joined: Jan 10, 2010
    Posts: 4,631

    jcmarz
    Member
    from Chino, Ca

    Ditto on the hot water but I think KY jelly will be a better lube.
     
  16. bobss396
    Joined: Aug 27, 2008
    Posts: 18,740

    bobss396
    Member

    Done that too, just flop it on a warm hood in the sun for an hour or so makes a big difference in the pliability of the gasket.

    Bob
     
  17. stubbsrodandcustom
    Joined: Dec 28, 2010
    Posts: 2,597

    stubbsrodandcustom
    ALLIANCE MEMBER
    from Spring tx

    run the motor for a while and get the hood nice and toasty and lay it on there...
     
  18. wsdad
    Joined: Dec 31, 2005
    Posts: 1,257

    wsdad
    Member

    As others have said: Try the bathtub or a bucket of hot water.

    My contribution: A spray bottle of almost boiling water will reheat stubborn areas almost instantly. Set it to squirt, not spray. Careful you don't scald yourself.
     
  19. roundvalley
    Joined: Apr 10, 2005
    Posts: 1,776

    roundvalley
    Member

    Wipe them well with CLOROX and that will soften the rubber.
     
  20. said before. hot water, soap.
     
  21. John Milner
    Joined: Jun 3, 2006
    Posts: 166

    John Milner
    Member
    from Oklahoma

    How about brake fluid? Worked for me.
     
  22. abe lugo
    Joined: Nov 8, 2002
    Posts: 3,338

    abe lugo
    ALLIANCE MEMBER

    is it hardened rubber? there is a mix of wintergreen oil and water I think that will soften old rubber, I found it on a motorcycle forum.
    here http://forums.sohc4.net/index.php?topic=76103.0
    I found that the wintergreen oil is expensive, like 8-9 bucks for 1 oz.
    I also found that Thor wintergreen oils for racing tires is the same thing.
    http://www.thoroil.com/tirepreps.html

    Or wrap it in a towel and throw it in the dryer?

    I would not just boil and old rubber to soften it because it can just expand and loose all its shape.
     
  23. BURN OUT BOB
    Joined: Apr 16, 2005
    Posts: 1,859

    BURN OUT BOB
    Member Emeritus
    from western AZ

    Should be soft to begin with. If you just want it more plyable/slick try some amorall or tire blackjack.
     
  24. Judd
    Joined: Feb 26, 2003
    Posts: 1,894

    Judd
    Member

    I've used the close drier for gaskets on refrigerators. Softens them up to install and as they cool down on ref. they harden in the shape needed.
     
  25. 416Ford
    Joined: Mar 28, 2007
    Posts: 826

    416Ford
    Member

    I would not recommend using brake fluid on a window seal. Brake fluid will swell up or shrink rubber. This is why you use a minimal amount in your transmission when it starts to slip.
     
  26. nummie
    Joined: Jul 7, 2010
    Posts: 214

    nummie
    Member

    x2 on the wintergreen. works great for softening up those old carb insulators on motorbikes, dont see why it wouldnt work on windshield gaskets. It will expand like crazy and freak you out, but give it a day or two and it comes back to size and stays pliable.
     
  27. Jalopy Joker
    Joined: Sep 3, 2006
    Posts: 34,075

    Jalopy Joker
    Member

    yep, worth waiting for some Sun light to soften window rubber, upholstery, etc. never microwave or oven. have a friend that heated up paint cans in oven - blew up and painted a good portion of kitchen.
     

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