Helps to achieve a very smooth finish. They are designed for painting feature walls or walls where you want to get a really smooth finish with less &#;roller stipple than 12mm rollers&#;. You can actually use an &#;All Purpose roller&#; on all surfaces in your home, although you will always get a better finish by using the special nap roller designed for a specific surface and purpose
Roller cover nap sizes, or thickness of the fibers, varies from low to high based on the surface you are painting. Low-nap rollers pick up less paint, while high-nap rollers pick up and hold more for larger projects.
Cohwa Product Page
Surface texture and general environmental factors, including temperature and humidity, should also factor into your roller cover selection. For uniform interior surfaces like drywall, cabinets and metal, use roller covers with smaller nap sizes, like our ¼-inch nap WhiteDove&#;, to ensure a smooth finish. Walls, ceilings and paneling require a slightly larger nap size of 3/8-inch; for lightly textured walls, decks and concrete, use a ½-inch nap; and for textured ceilings, stucco and masonry, use ¾-inch.
For outdoor jobs, or when painting rough interior surfaces such as cinder block, rough wood and brick, look for roller covers with a higher nap, like our 1-inch GoldenEagle&#; for greater paint pickup that reaches every nook and cranny, as well as faster application and increased productivity.
For more information, please visit paint rollers manufacturer.