ᐅ Window paint does not adhere to the surface.

Hello everyone,

I want to paint my wooden windows. For this, I roughened the surface with 180-grit sandpaper. Unfortunately, the new paint (Alpina white paint for windows and doors) won’t adhere, even though the product description says it has an integrated primer. The result looks like in the photo.

I understand that I applied the paint too thickly, which caused it to run. However, if I apply less, the coverage is even worse and the paint spreads out more.

What did I do wrong? How should I do it correctly?

Werner1976 schrieb:

What did I do wrong? How do I do it correctly?

You should first apply a thin primer coat, which can also be done with the same paint. The coverage is achieved with the second (also thin) layer.

Shake the can vigorously and then stir it. Paints tend to separate into their components inside the can.
Do not use a brush; instead, use a small foam roller for the coating.

I tried again yesterday. Beforehand, I shook the paint can thoroughly and then used a roller. The result is much better. The paint still doesn’t adhere very well, but now it’s more even and somehow it does hold.

You have to be careful to apply the right amount of paint. Otherwise, it either doesn’t cover properly or it runs.

Thanks for your help!

Even when using primer and sanding afterward, the surfaces must be degreased beforehand. If knots or resin pockets are visible, an appropriate sealer must be applied. Window paint primarily means that the paint is more resistant to UV rays and weather conditions.