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Myth #1: Don't imbed your
tape tightly.
Fact:
Imbed your tape
tightly to prevent bumps or possibly sanding the tape!
Myth #2: Sand to knock off
ridges and high spots.
Fact: Use a 4 inch or 10 inch knife to
knock down high spots.
Scrape perpendicular
to the ridge. Never remove ridges by sanding! Excessive sanding
produces humps and bumps - only sand after all coats have been applied.
Myth #3: Use thick joint
compound so more can be applied.
Fact: Use slightly thinned joint
compound (mud) so it leaves no bumps after using the knife. Thinned mud
can be drawn down more uniformly. Also, thinned mud leaves fewer air
pockets. Thin your mud by placing your tool in water and then mixing
the mud with the tool. Make sure to thin your mud whenever it starts to
dry up.
Note: This is meant to apply to the non-professional. Drywall
professionals will use low-shrink compounds to minimize steps - they also
have the training and the high quality tools needed to place the mud on
uniformly.
Myth #4: Two coats of joint
compound are all you need.
Fact: Unless you're an experienced
professional using specialized tools and compounds, a minimum of 3 or 4
coats are needed for a good job! More thinner coats are likely to result
in less need for sanding.
Myth #5: A good primer and
paint can make up for a bad job.
Fact: Only a professionally done texture job
can somewhat fix a bad job. Bumps, exposed tape, sanded paper, and ridges
will always show through paint. With time, as the paint is absorbed
and the compound shrinks, defects become even more obvious.
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