Hello!
I've built a new interior wall 90* against the chimney. The last board against the chimney is Minerit and it's mounted in a metal stud. The issue is that there is about a 0.5 cm gap between the board and the plaster on the chimney. Can I use a regular latex caulk here or is there another type of caulk that can withstand heat better?
/Chronaus
I've built a new interior wall 90* against the chimney. The last board against the chimney is Minerit and it's mounted in a metal stud. The issue is that there is about a 0.5 cm gap between the board and the plaster on the chimney. Can I use a regular latex caulk here or is there another type of caulk that can withstand heat better?
/Chronaus
There is silicone at Biltema that withstands 200-250+ but is not very paintable. Otherwise, pannkitt(?) in a cartridge, costs about 100:- at places like Bauhaus. It hardens and becomes rock hard, withstands 1000+, and is paintable.
Best regards, fremax
Best regards, fremax
If your chimney becomes so hot that regular acrylic caulk, painter's caulk, etc., don't work, then there is something seriously wrong with it. The maximum temperature requirement for the outside of chimneys is 85 degrees. Masonry chimneys are usually significantly cooler than that. It is generally considered acceptable to paint, wallpaper, etc., on a masonry chimney.
If you are still concerned, you can use sealant intended for fireproofing.
If you are still concerned, you can use sealant intended for fireproofing.
Ahh thanks for the response, but the problem is that the sealant needs to be paintable, flexible (to avoid cracking with any movements), and heat-resistant. The pipe just inside is only for the kitchen fan, but a stove will be placed about 20 cm from the seal, so I assume it gets quite warm there anyway.
Edit: PNO I didn't see your response before I wrote, but I'll check out the sealant. Regular acrylic sealant is around max 70 degrees, I assume it can get a bit warmer if you do a lot of burning sometime in the future. (At least according to the chimney sweep)
Edit: PNO I didn't see your response before I wrote, but I'll check out the sealant. Regular acrylic sealant is around max 70 degrees, I assume it can get a bit warmer if you do a lot of burning sometime in the future. (At least according to the chimney sweep)
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What did you use in the end?