Darker areas on paint where I previously applied filler

painting

Recently I painted walls in bathroom with latex water-dispersion paint. The walls were quite even, except some minor defects and a few major ones. I applied "acrylate" filler (that's what the can says) on those defects. In case of major defects I appiled about 4 millimeters of filler. I let the filler dry out, sanded it and applied two layers of paint.

Now I see that the paint coating is slightly darker where I applied a thick layer of filler. I suppose the filler hasn't dried completely and now releases moisture and this propagates through paint.

Do I take any special measures or just wait till it dries up? How long should I wait? Have I screwed it?

Best Answer

I would wait for a couple of days to see if the filler (which maybe absorbed water from the paint) dries completely and then the color matches. But since you didn't prime the filler (or maybe it didn't dry completely), possibly where it was thick, it has modified the color of the paint. If the area is still darker after a couple of days of letting the paint/filler dry, then I would apply primer to those areas and repaint. Hopefully you can use the same roller nap and get a good match on texture so you will not have to repaint the entire wall.