and once again, I've just learned something I did not know, nor would've ever known! Thank you for that info. :beer:GM-OEM hood insulators use fasteners only, no adhesive. GM's theory is that in the event of an engine compartment fire, the plastic fasteners will melt and the pad will fall on the engine, possibly helping to suppress the flames. Since I made my own insulating pads, I glued mine with silicone sealer. That way, if I change my mind later, I can get a relatively clean release from the paint, possibly avoiding finish damage.
Bill