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Whats the best RTV?

Discussion in 'The Garage' started by 85mudblazin, Jan 18, 2005.

  1. 85mudblazin

    85mudblazin 1/2 ton status

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    I need some RTV for diff covers, manifolds, t-case, and some other stuff, what color is the best all around one to use??
    -Chris
     
  2. ryoken

    ryoken Puppy Fabricator Premium Member GMOTM Winner

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    i like the black....
     
  3. 85mudblazin

    85mudblazin 1/2 ton status

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    Thats kind of what I was thinking, thanks :)
     
  4. surpip

    surpip 1 ton status

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    mee 2 i used it on my patoto gun:D

    and everyting else
     
  5. 85mudblazin

    85mudblazin 1/2 ton status

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    It ranks up there with duck tape and zip ties :rotfl:
     
  6. mr_beer

    mr_beer 1/2 ton status

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    I second the Black:D
     
  7. Emmettology 101

    Emmettology 101 3/4 ton status

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    Many replies here that might be helpful: LINK ON SEALANTS


    I have always liked the black.
     
  8. 85mudblazin

    85mudblazin 1/2 ton status

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    Thanks ill just get the black RTV :)
     
  9. Hossbaby50

    Hossbaby50 3/4 ton status

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    A buddy of mine is a diesel mechanic and he recommended that I switch to Ultra Grey. It seems to work pretty well. He said that is the only one he uses. I have used Ultra Copper and Ultra Black before and they worked pretty good too.

    Harley
     
  10. MOABDADC22

    MOABDADC22 1/2 ton status

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    I second the Permatex Ultra Black. As log as both sufaces are clean.
     
  11. camiswelding

    camiswelding 1/2 ton status

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    Use what the racers use.... "The Right Stuff"... it comes in grey only and you need a caulking gun for it... its a little more expensive but its the next generation of RTV

    I love how it seals and how easy it is to clean up squeeze out... peels right off the next day

    cam
     
  12. 87BrnRsd

    87BrnRsd 1/2 ton status

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    I used to use orange a while back. I switched to ultra grey when my friend (who is the service manager at a local chevy dealership and knows more about cars than anyone I have ever known) told me that grey is the only color gm will let the dealerships use. I have never had a problem with it.
    -Harrison
     
  13. ntsqd

    ntsqd 1/2 ton status

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    Second the Right Stuff. Especially nice for making lifter valley rail seals when installing an intake manifold.
     
  14. Jonny-K5

    Jonny-K5 1/2 ton status

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    i just tried the right stuff a couple weeks ago. it sealed my rear diff that still leaked after 3 tries with black and grey. stuff is awesome, but expensive(16.00 a tube at napa). for normal stuff i like grey. i save the good stuff only for special occasion.

    BTW i recently bought a rebuild motor that had everything sealed up with grey. intake,waterpump, thermostat. probly some other stuff i didnt see as well. no problems at all.
     
  15. 85mudblazin

    85mudblazin 1/2 ton status

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    How big is the tube?? I hope its pretty big for $16
     
  16. Jonny-K5

    Jonny-K5 1/2 ton status

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    not big enuf. but worth it.. for special occasions. otherwise go grey
     
  17. dcell152

    dcell152 Registered Member

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    I always used the high temp orange. Never had a proublm with it. actuly it worked great. The copper works good to. Never tried the good stuff. I never needed any thing better. I have done intake vallies, valve covers, rear ends, timing covers, exctera.
     
  18. 79Beast

    79Beast 1/2 ton status

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    My personal favorite is Permatex Ultra Black. I've found it to have the best adhesive properties and to be the most forgiving of unclean surfaces. I use it for everything except very high temp applications. For those I would use Permatex Red or Copper.
     
  19. rerun93

    rerun93 Registered Member

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    i like motoseal personally withstands gas oil and other substances. just my 2 drops in the bucket
     
  20. bigyellowjimmy

    bigyellowjimmy 1/2 ton status

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    Yep, this is the best on the market, works very well for problem areas but is too expensive for routine stuff. Its also used by various OEM applications
     

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