Building conservationist
· 3 509 posts
Is it possible to roughen a planed surface so that the paint (acrylate) adheres better?
I'm working on making wind boards, and the timber I've intended for the water board bends the wrong way if you put the rough side up. That is, when the board warps, it will curve up towards the sky instead of down towards the tiles. And that's not good...
Therefore, I decided to have the smooth side up and have cut them accordingly. Then I realized that the paint (Teknos Eko Nordica, which I have already bought) will not adhere to a planed surface. What to do? If I turn the board over, it might become too short since it has already been cut at the top. Roughen the smooth surface? I've tried with a hand sander with the coarsest sandpaper but with very little effect. Buy new timber that is unplanned on both sides? It wasn't available at the nearest building supply market, so I'd have to search elsewhere... Paint with linseed oil paint instead? I find wind boards a bit impractical to paint with that kind of paint. Moreover, the wind boards themselves are unplanned, and linseed oil paint on unplanned wood doesn't seem like a good idea. I'm completely at a loss right now, so the project has come to a standstill. What would you have done?
I'm working on making wind boards, and the timber I've intended for the water board bends the wrong way if you put the rough side up. That is, when the board warps, it will curve up towards the sky instead of down towards the tiles. And that's not good...
Therefore, I decided to have the smooth side up and have cut them accordingly. Then I realized that the paint (Teknos Eko Nordica, which I have already bought) will not adhere to a planed surface. What to do? If I turn the board over, it might become too short since it has already been cut at the top. Roughen the smooth surface? I've tried with a hand sander with the coarsest sandpaper but with very little effect. Buy new timber that is unplanned on both sides? It wasn't available at the nearest building supply market, so I'd have to search elsewhere... Paint with linseed oil paint instead? I find wind boards a bit impractical to paint with that kind of paint. Moreover, the wind boards themselves are unplanned, and linseed oil paint on unplanned wood doesn't seem like a good idea. I'm completely at a loss right now, so the project has come to a standstill. What would you have done?
Building conservationist
· 3 509 posts
I wasn't planning on it, since it's an old house and I'm trying to avoid modern solutions on the exterior. Actually, there were metal sheets on the water boards I removed, so it's possible I'll give in and put them back. BUT what do I do with the water boards that have already warped and are pointing up towards the sky? Can they be forced down or do they need to be replaced?mikaelbe said: