Well got the s-366 up and running but had to cut the firewall for the DP I have screwed sheet metal back in to fill most of the butchery. But, I need to find a temp heat sealer to coat the inside with to help keep out the fumes and such. Is there a hi heat caulk out there for such a purpose?

 

Fire caulk, but I dont know what its rated for... somewhere in the 400* range if I had to guess.

 

who sells it?

 

Home Depot, Lowes...

Fire Caulk from 3M | The Home Depot - Model CP-25WB+