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Patching
cracks in wallboard |
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Patching
cracks in wallboard: |
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Various
types of patching materials are available for
patching drywall. These include adhesive and
non-adhesive drywall tapes, fast drying patching
compounds and drywall bandages.
Regardless of the type of patching materials you
use, read the manufacturer's instructions carefully
and follow each step as suggested. Some patching
compounds dry quickly, while others require longer
periods to dry.
Be sure the cracked area to be patched is completely
clean and dry. Remove all dirt from the area and
clean out all cracks.
Apply the patching plaster with a wide and flexible
putty knife ( Fig. 1 ). Apply the compound by working
across the crack with strokes in both directions.
This method is the best way to work the patching
plaster into the crack.
Force the patching material into the crack with
strong, firm strokes ( Fig. 2 ). Examine the crack
after each stroke to ensure that enough material is
applied at all points.
The knife should bend with pressure as you draw it
along the cracked area. Repeat the passes as often
as necessary to force the material well into the
cracked surface.
Use the putty knife as a scraper to remove any
surplus material ( Fig. 3 ). Move it along the cracked
area gently to scrape away the surplus material that
was applied by the double strokes show in Fig. 1.
You may want to dip the putty knife into water and
make a final pass along the repaired area ( Fig. 4 ).
Touch up any areas that need more patching material.
After the patched area has dried completely, sand
and prime it to prepare for the finish you desire.
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