Chainsaw Repair

I have been trying a new paint on the mufflers I modify. It is called High-Temp Silicone Coating and is by DEI   (Design Engineering Inc) 1500° protection you can get it at auto parts stores in the performance isle. Runs about $11 a can and goes a long way, I am still on the first can and have painted 9-10 mufflers with it.

It dries to the touch in about 15 minutes, you then heat it in a 400° oven for 1 hour to fully cure. Does not stink in the oven either.

Thats stuff sounds hard to beat for the cost for gas saws.  But how is it holding up to use and weather (wet cold  then use etc over and over)?