Hello,

I am renovating my kitchen and have torn out the kitchen furniture. In one of the corners, the chimney goes from the basement up to the ceiling. In this corner, it was covered with drywall that I removed to inspect the space. Behind the drywall, there is a white mineral-like board that has "CAPE BOARDS MASTERBOARD 254622" on it. It is white with a texture similar to textured wallpaper. As mentioned, white.

What I'm worried about is that this might be some form of asbestos board. I don't know when the chimney was built. The house is from 1973, and I suspect that the chimney was also installed then. But as I said, I'm not sure.

Does anyone know how to identify the board in question? Any other tips?

I have put the drywall back again without screwing it into the board behind.

Many thanks in advance!
 
  • A white mineral-like board labeled "CAPE BOARDS MASTERBOARD 254622" behind removed drywall in a kitchen corner, next to a chimney structure.
  • A close-up of a white mineral-like board with "CAPE BOARDS MASTERBOARD 254622" text, displaying a texture similar to wallpaper.
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Nothing to worry about if it happens to be eternit, it doesn't cause any harm where it is. Rather, it's actually one of the better materials for the purpose.
 
Masterboard exists today, definitely no asbestos in it. But it can be tricky to know what they had in 1973.

As mentioned, IF it contains asbestos, there's no harm in it being there. It's only if you, for some reason, want to saw into it or similar that it could be dangerous.
 
Is there any way to identify an old record by name and number?

It would be great to know what material it is.
 
Just one last check. No way to identify a disc if it's dangerous or not?
 
The technology of printing product names with inkjet is significantly newer than 1973. Just something to think about!
 
According to the brochure about Masterboard from Ljungbergs (who are retailers in Sweden), Masterboard has been manufactured since 1978 and it also states:

http://www.ljungberg.se/brochyrer/masterboard.pdf

Masterboard is made up of calcium silicate (lime, cement, and silica), vermiculite,
mica and is reinforced with cellulose fiber. During dust-generating work, a
dust extractor and/or dust filter mask type P2 should be used. Additional information can be
found in a separate health and safety data sheet that can be obtained from Promat (see
back side). There are no directly hazardous substances in the board, and it does not emit any
measurable emissions (tested according to SP method 1598).

I have not heard that Masterboard is supposed to have contained asbestos.

/Engineer
 
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