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Skin it any way you like.... but how do you determine what is a "minimal"amount of RTV? It breaks down & comes a loose in an antifreeze mixture.I can't believe that as smart as you guys are that you still recommend it on a cooling loop. It works great on valve cover gaskets & oil pans . Are ya'll getting some endorsements that I'm missing out on? <img src="/forums/images/graemlins/smile.gif" alt="" />


Permatex makes an RTV that formulated for water pump installations thats what I use. I've never conducted an experiment to see how antifreeze affects it's properties, but its hard to believe that if RTV will seal petroleum based oil that the ethyl glycol in the antifreeze would so easily break it down. My definition of minimal is just enough to coat the gasket surfaces without squeezing out all over the place.

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So is permatex wrong to market this product for this purpose?

99 Gen 2.5, fixing blown head gasket
89 SWB- 33's, ARB Front locker, SR rear locker/axle, SR F brakes, winch, WST Offroad Armor all Around, 2.85 Aussie T-case Gears (SOLD)
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