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skinny
Does anyone have experience and a recommendation for filling small gaps between plaster and a uPVC window frame?
Our main bathroom has 2 external solid brick walls (old house). In some places around the window small black spots have started to form. No doubt it's mould from frequent condensation when it is cold.
I'm gonna kill the mould, sand back, prime with zinnser BIN, and then zinnser permawhite.
However, I have a couple of little gaps and cracks between the frame and plaster that need filling. Is caulk best for this, or a low modulus silicone? Googling doesn't really give a consensus, and there's a lot of results about adding a plastic trim, which is not what I wanna do. Picture attached.