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Re: insulation
Just visiting you area of the forum. To share my experience with lizard skin. It is on a 72 c20. I bought the two part sound and thermal barrier with the required spray gun from Summit. It's a bit pricey all in but yielded very good results. Overall a tighter feel and sound while driving. Thermal insulation is quite good. Surfaces still get on the warm side but nothing like bare metal. Very easy to spray on. I took my time masking all holes and mount surfaces. That kept fitment of related items to the mounting surface true, and avoided things being off by the thickness of the Lizard material. Assuming I had the budget, I would use again. Oh and rust...I used a converter on areas with some evidence. Let it cure for a week before spraying the Lizard Skin. Adhesion is excellent and I feel will have good vapor barrier assumming no penitration from back side.
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