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Rust proof spray underneath

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by TXsizeK5, Sep 15, 2001.

  1. TXsizeK5

    TXsizeK5 1/2 ton status

    Aug 26, 2001
    Likes Received:
    College Station, TX
    If you have gotten this rust protection spray for the under body like a few yrs ago is it possible tog et it again? do they have to scrape off the old stuff? or just stick on a new coat?

    6in 87' K5 w/ 35" BFG muds.
    Kn filter

    What I need: 4.11 gears, Lim Slip Dif, Force2 Catback, rear springs , Throtle body spacer.
  2. BigTex

    BigTex 1/2 ton status

    Dec 27, 2000
    Likes Received:
    South Texas
    In order for rust proofing to work best, it MUST be applied to the bare metal. If you just coat it over the old stuff, it won't do anything. Just curious, why are you wanting to do it again? Did the older stuff not work? If you are talking about rubberized undercoating, I've just sprayed it over the older stuff with good results, but I've never intended to use it as a rust-inhibitor.

    <font color=red>Impotence: Nature's way of saying "No hard feelings"</font color=red>

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