![]() ![]() It is not as if you are floating the entire surface being skimmed. However the key to roll skimming a wall is not leaving excess mud on the surface. You may feel that removing so much material will negate the benefit of applying a thin layer of mud to the surface. The angle of your knife to the drywall surface as well as pressure used is similar to that used when coating screw heads. This is different than the technique used when coating drywall joints. The drywall knife should be pulled tightly across the surface you are skimming. ![]() Using a twelve to fourteen inch drywall knife, remove as much drywall compound as you can. Step 3 - Skim the surface with a large drywall knife The goal is to have mud thin enough that can be rolled smoothly with a paint roller. Once the paddle spinning creates a vortex that extends half way down the mud it is considered thin enough to roll. Others watch the paddle as it spins in the bucket of mud. ![]() Some use their drywall pan to measure out water. To test for desired consistency, tradesmen use various techniques. Water should be added to drywall joint compound gradually until the desired consistency is achieved. Only texture mud may be thinner depending on the type of texture applied. Mud used for roll skimming is nearly the thinnest mud used for any step of the finishing process. Some tradesmen however prefer to use "topping" compound because it creates a harder surface than "all purpose" mud which may reduce (though slightly) denting in the finished surface. Tradesmen will many times prefer to use lightweight all purpose joint compound because it is easier to sand than "all purpose" or "topping" compound and a light sanding is required once dry. Any type of drywall compound can be used when roll skimming. How to Skim Drywall for Smooth Walls What kind of mud should be used?Īccording to GA-214-10, a thin layer of joint compound should be trowel applied. ![]()
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