Where my Class A passes through the wall, on the inside, there is a gap between the outside of the Class A and the metal of the thimble cover (which is basically a thin sheet of metal formed to look like it is something more... sort of lame, but it looks ok I suppose - it does cover up most of the hole and looks substantial from a distance...). Anyway, this gap allows light and some air to flow from the wall into the room.
Last year my sweep 'sealed' it with what I can only assume was perhaps furnace cement - I don't really know what he used. Anyway, it was black when it went on, and looked ok at first. However, it ended up gradually turning white over weeks (weird) and more importantly it hardened. This means it has now cracked over time and with the cleaning the pipe moved a bit and pieces have fallen out and it just looks bad.
I want to pick all of it out from around there and replace it with a better material. I believe that a silicone sealant is the right thing to use - in fact folks here recommended that to me more than a year ago. I had hoped that is what was going to be used when the sweep said no problem I'll take care of it. So now I'm just inclined to take care of it myself. So off to google land I go looking for what to use...
Is this the right thing to use? "Rutland Prod. 76 High Heat Silicone Sealant"? It says it is rated up to 450f continuous and 500f peak. Seems that for normal use it should be well within specs of course - that pipe doesn't hardly get all that warm most of the time - certainly nowhere near 450! But... is there a better product to use and where would I get it?
Thanks.
Last year my sweep 'sealed' it with what I can only assume was perhaps furnace cement - I don't really know what he used. Anyway, it was black when it went on, and looked ok at first. However, it ended up gradually turning white over weeks (weird) and more importantly it hardened. This means it has now cracked over time and with the cleaning the pipe moved a bit and pieces have fallen out and it just looks bad.
I want to pick all of it out from around there and replace it with a better material. I believe that a silicone sealant is the right thing to use - in fact folks here recommended that to me more than a year ago. I had hoped that is what was going to be used when the sweep said no problem I'll take care of it. So now I'm just inclined to take care of it myself. So off to google land I go looking for what to use...
Is this the right thing to use? "Rutland Prod. 76 High Heat Silicone Sealant"? It says it is rated up to 450f continuous and 500f peak. Seems that for normal use it should be well within specs of course - that pipe doesn't hardly get all that warm most of the time - certainly nowhere near 450! But... is there a better product to use and where would I get it?
Thanks.