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Thread: Undersealing advice please

  
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    Undersealing advice please

    I've stripped out everything on the rear end now, and whilst it's being powdercoating I want to underseal the lot.

    I've read several threads on here saying use this, do it this way or that. So i thought i's ask again for a fresh opinion.

    My original idea was to scrub whe lot like a wire wheel, paint it with Hammerite smooth, and then go over this with a proper underseal such as Tetrasyl or waxoyl.

    But having read a bit, it seemes the Hammerite with Waxoyl sounds like that rolled into one. Is it worth going over the lot with a stoneguard first and then over it with the H/WO?
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    Wirewheel the lot, rust, flaky paint, road grime, everything, get it off.

    Then go over the paint with a Zinc primer, less exothermically reactive to moisture and oxygen, and a lot more rust proof, so seals the bare paint. Or any Zinc based paint or primer.

    Then the Best stuff is Waxoyl with Added Schultz, or if you can find it, Schultz itself, goes on like a really hard rubbery tar.

    Found that Tetrasyl stuff to be watered down almost.
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    Quote Originally Posted by Toms1989 View Post
    Wirewheel the lot, rust, flaky paint, road grime, everything, get it off.

    Then go over the paint with a Zinc primer, less exothermically reactive to moisture and oxygen, and a lot more rust proof, so seals the bare paint. Or any Zinc based paint or primer.

    Then the Best stuff is Waxoyl with Added Schultz, or if you can find it, Schultz itself, goes on like a really hard rubbery tar.

    Found that Tetrasyl stuff to be watered down almost.
    So instead of painting the clean surface with a proper paint, use a rust proof primer instead?

    The only reason i suggested the Hammerite smooth was so that if any of the underseal chipped off, it would still be black and protected
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    Quote Originally Posted by DaveCoupe View Post
    So instead of painting the clean surface with a proper paint, use a rust proof primer instead?

    The only reason i suggested the Hammerite smooth was so that if any of the underseal chipped off, it would still be black and protected
    Yup, or a Zinc based one. Makes one hell of a difference the Zinc part does.

    And with that Waxoyl/Schultz stuff, it won't chip off. Stones and stuff just bounce of it with its rubbery texture. As the stuff heats up, it expands, bit more coverage. Oh and the Waxoyl is black too.
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    Make sure the stuff you get actually bites into the metal, Like the zinc primer before the schultz.

    Best option is to use a product that is like a rubbery substance, As it flexed with any movement that may occur and not chip off like normal paint will.
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    Quote Originally Posted by andybon View Post
    Make sure the stuff you get actually bites into the metal, Like the zinc primer before the schultz.

    Best option is to use a product that is like a rubbery substance, As it flexed with any movement that may occur and not chip off like normal paint will.
    Exactly mate, Such good stuff, you try gouging it with a screwy and it just flexes.
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    Used it on a Saxo I used to have. Just don'y get it on your hands, Or the driveway for that matter. Nothing shifts it
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    Right what i have in mind:
    • Wire wheeled
    • Citrus cleaned
    • Zinc primer
    • Stone guard
    • Waxoyl/Schutz
    Sound about right?
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    And a tarporline to go on the floor to catch any drips.

    Personally I would use a very strong degreasant to get rid of the muck and grease off.
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    Quote Originally Posted by andybon View Post
    And a tarporline to go on the floor to catch any drips.

    Personally I would use a very strong degreasant to get rid of the muck and grease off.
    that's what i meant by citrus cleaned
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