Nice forum, been reading for about a month so time to join in. Does anyone have a recommendation for a high temp silicone? I'm going to clean the chimney and in the process need to reseal the block off plate. Our woodstove (VC circa 1990) is connected to our fireplace hearth. I've used stove cement in the past but just thought I'd ask about new stuff...any experiences/performances would be helpful too. Thanks in advance.