Dyna-Mat

i agree the water heater stuff sounds intresting,,, all i want to do ,,is block some of the heat from the fire wall area and the exhaust pipes,blower motor makes a ton of heat in a black on black car,,,

ive seen stuff at street rod events that blocks over 1000 degrees of heat,,but is very costly and heavy,,
any one have any idea what the temp limit is on the dyna mat ??