Step-by-Step Pictures and Instructions: How to Apply Knock-Down Ceiling Texture
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Spray ceiling texture to add visual interest and hide imperfections.
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2. Thin the joint compound, or “mud,”
with water.
Use a blade mixer
mounted to a variable-speed 1/2-in. drill (most mixers are too large for 3/8-
in. drills). You can also mix the mud by hand with a 5-gal. paint stirring
stick (available free at paint stores). Scoop half of a full bucket of
unthinned mud into an empty 5-gal. bucket and add the correct amount of water
to both buckets. Hug the bucket firmly with your feet and stir. After the
initial stirring, scrape the sides and bottom with a stick or your hand and
stir again. The second stirring helps remove thicker clumps that can clog the
spray gun.