Excessive bubbling that doesn't flow out and leaves craters or depressions in the paint film.
Using a roller cover with incorrect nap length. Painting too soon after shaking. Rolling paint too fast or excessively. Using old paint. Painting over unprimed porous surfaces. Painting when the temperature is too hot, over 90ºF.
Properly prime porous surfaces or new work. Use the proper nap length roller cover or a high quality brush. Avoid excessive rolling or brushing. After shaking, allow bubbles to dissipate before painting. Avoid painting when temperatures are above 90ºF.
PRIMERS & INTERIOR FINISHES
Priming is essential for better adhesion, sheen uniformity, mildew control and durability. Select a top quality interior paint in the color and sheen of your choice.