Wood painting.

[CrazyReaper]

Hi! I have a problem. I wanted to paint my wooden fence white, but after a while black spots appeared.What is it and how to deal with it?

[Magnetto]

did you apply the primer before painting?

[Xiander]

It's all tannin. Apparently the wood is new I guess. In this case, you need to cover the wood with wood sealer, and then paint it https://woodyexpert.com/best-wood-filler/ . This will prevent the appearance of dark spots.

[David1207]

I would better suggest you to apply primer on wood before putting any paint on it.