While using a quality brush will get you far, achieving a smooth, professional finish begins with determining the proper applicator for the job. Natural-bristle brushes work best with oil-based paints. Synthetic brushes, made from nylon and polyester, are the perfect match for water-based latex paint. Ideally, tape should be removed about an hour after you’ve finished painting. But if you’ve let it sit for too long and the paint starts coming up, you’re not out of luck. Use a razor blade to gently score along the edge of the tape as you peel it back. You can also try using a blow dryer to heat up and loosen the adhesive, using your fingers to roll it away from the wall. If your paint isn’t applying properly, check with the manufacturer to see what the optimal temperature is for the paint. You may have to make adjustments, like using a space heater or portable air conditioner, or reschedule your project for another day. Wood naturally contains tannins, which can migrate to the surface when wet, causing staining and discoloration. You can fix this problem by sealing the wood with a tannin-blocking primer before painting. If there is significant bleed through, consider using two coats of primer before applying the new color. The best way to prevent this issue is by taping off the ceiling and brushing on a horizontal strip of paint to cover the top five or so inches of the wall. This will give you a generous buffer zone, allowing you to steer clear of the ceiling.
