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Thread: Hylomar Sealant

  1. #1
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    Hylomar Sealant

    Anyone used this Hylomar Blue sealant on exhaust headers with or without gaskets, and other head gaskets surfaces
    Never dries, non-hardening, so not like other gupps, Parts can removed and be reassembled.
    Developed for R/R gas turbine jet engines used at 44k ft in the sky, so must be good.
    Friend recommended this stuff for a engine refresh project.
    Unable to see his build yet due to our fearless leader in Ottawa.
    So just asking, I am keeping a open mind.

  2. #2
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    I've used it before on a water pump and intake manifold installation.
    Excellent stuff!

    Easier to work with and not thick like silicone for jobs like that.
    Unlimited assembly time.
    I think I still have about 3 tubes of Hylomar universal blue at home.

    If it's good enough to seal jet engines it has to be good.

  3. #3
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    How did you apply it, with a brush, to get a smooth thin layer?

  4. #4
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    I applied it with my finger and that gives a nice uniform even coat.
    I think Hylomar contains some type of solvent that evaporates to make applying it easy out of the tube.

  5. #5
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    It's mixed with acetone.
    Thanks for your reply.

  6. #6
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    Buy it and try it.
    I was more than impressed when I used it.

  7. #7
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    Where did you buy it, comes in different versions and colours now for different applications?
    D&D Engineering distributes it so going to ask them for recommendation for best one to use.
    I need the best one for pushrod engine use on 400 series hi-ways and evading the radar beams. LOL.

  8. #8
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    I bought it at a industrial supply store in my area that's no longer in business.

  9. #9
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    OK, thanks

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