firewall, black expanding foam
After driving with our new gas class A in 20 degree weather have some minor leaks in the front firewall creating some minor comfort issues that just can't be resolved by the dash heater controls. I w...
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Black will burn. You can use fire-block foam which will even take a direct flame. OTOH, even the black or white "Stuff" is good for around 240 degrees and I doubt it will see those kinds of heat.
