Dark spots on new door linings

chilluk · 29 Dec 2009

Had some new door linings fitted and have noticed some dark patches / spots in places. Have sanded which lessens it but some seem to be through the wood to a depth.

Does this sound like some sort of mould / rot, or more like resin issues ? Even if it's not will I have issues with painting etc (got oil based primer and undercost (separates)

Cheers.

kevindgas · 29 Dec 2009

sounds like knots not sealed correctly, you can buy knotting from any good hardware store apply to unpainted timber leave to soak in the apply a 2nd coat.
leave a few days then undercoat (2 coats) and then top coat.

chilluk · 29 Dec 2009

It's not limited to the knot areas though - the wood is still all bare. I have bought the knotting solution/

The dark spots / patches are on the bare wood itself?

Thanks.

ladylola · 30 Dec 2009

What colour are the patches?Could you post a picture? It sounds like a fungal stain , blue staining is common and I've also seen a black stain too. It tends to develop whilst the tree is alive. Unfortunatly whilst it isn't going to spread or have any other deterimental effects you won't be able to get rid of it

JohnD · 30 Dec 2009

If you use Aluminium Wood Primer (it dries grey, not silver) it is very good at blocking stains and resin as well as knots and scorched wood. I use it and not Knotting. The aluminium particles apparently interleave when it dries.

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Dark spots on new door linings

chilluk

kevindgas

chilluk

ladylola

JohnD

DIYnot Local

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