Oodles

what type of muffler sealiant do you guys use to keep from being eat up and leaking from the fuel and hot gasses??

majortom-RCU

My Feedback: (40)

Permatex Ultra Copper high temp RTV sealant, from the auto parts store. I asked Bisson Custom Mufflers, this is what they recommended, and it seems to work pretty good. Of course you do have to (at least I have to) check the screws for tightness every clean-up, because thread-lock and split washers alone will not keep it tight more than a few flights.

Kaos Rulz

.... I use the 732 RTV for all engine joints. Yes it's clear, and yes it will withstand the high temps, and yes it's cheaper.

Attila

My Feedback: (2)

For a good seal use acetone to clean of the mating areas before applying the silicone sealer.