looking for sealant for my appliance adapter, I did my spring cleaning last weekend, and asked an employee where to find it. He said the silicone is in the paint isle, it will seal up PVC very well. I said it is for a PELLET STOVE exhaust metal flue. The look i got was like i had three heads. He told me a friend had a stove and uses PVC for the exhaust. I had no comment to this, i was dumbfounded. So i just kept wandering and did find the sealant. Is there a stove out there that this is safe or is this guy as nuts as I think he is?