I'm painting a three-stripe pattern across the length of my wall, and I had a question about whether I could sand down the overlapping areas.
The stripe consists of a 21" green stripe with two 3" stripes (white and dark grey) bordering it. It goes green--white--dark grey from bottom to top. The walls are a light grey/taupe color. We painted the top and bottom of the wall light grey, and then we measured and painted a swath of white. Next we will paint the grey and green and ta da, the white becomes a stripe.
So to my question. When we painted the white, you could see the buildup under it when you look closely. It's not super obvious, but my OCD had taken over. Before I paint the other stripes, can I tape them off and sand down the areas that will be painted? I just want to whittle down the paint a little so it looks cleaner.