Next, use a 1/2-inch or even 3/4-inch nap roller to apply masonry bonding primer to the brick. The thick nap is necessary to spread primer onto the recessed mortar joints.

To paint broad, flat surfaces, use a standard 9-inch paint roller with a 3/8-inch-thick nap paint-roller sleeve. (Nap refers to the fluffy surface of the sleeve.) ...

You could spend a ton of money for a new appliance in your favorite color, or you could simply paint your current appliance ...

Use a ½-inch nap roller for the walls, first from top to bottom, then from side to side. If you need to take a break, leave the roller in the tray and wrap the tray with plastic wrap.

Medium nap roller covers: For semi-smooth to rough textures, you should probably use medium nap roller covers.