Repairing damaged panels – USG Manufactured Housing Handbook User Manual

Page 22

Repairing Damaged Panels

1 Patching Dents, Holes,

Popped Nails and Cracks

a To repair a dent, sand and then

fill with lightweight setting-type
joint compound. Let harden.
Add second coat if necessary.
Sand and prime when dry.

b To repair a small hole or crack,

wipe area clean. Fill with light-
weight setting-type joint com-
pound, using a putty knife. Let
harden. Add second coat if nec-
essary. Sand and prime when
dry.

c To repair a popped nail, drive

and dimple new nail 1-1/2

from popped nail. Drive and
dimple popped nail. Cover with
lightweight setting-type joint
compound. Sand and prime
when dry.

2 Patching Medium Holes
a Apply generous amounts of

lightweight setting-type joint
compound around edges and
coat the perimeter of hole.

b Crisscross two or three strips of

joint tape over opening and
embed tape in joint compound.
Let harden.

c Apply coat of joint compound

over taped area. Let harden
and apply second coat; sand
and prime when dry.

PANEL 61

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Before applying subsequent
coats, fill fastener depressions
using a hand knife or nail spotter.

6 Finishing

When the taping coat is dry, use a
7

Љ-10Љ box finisher to apply the

next coat of compound on flat
joints. Allow the compound to dry,
then sand lightly.

Apply the finish coat, using a 12

box for flat joints, and a 2

Љ-3Љ cor-

ner finisher (attached to the cor-
ner pump or angle applicator) for
inside corners.

Apply a finish coat to fasteners.

Scrape away excess compound
and fill in voids using a hand
knife. Sand as needed.

Alternative Method (Banjo)
The banjo offers an alternative finish-
ing method that is especially good for
small jobs.

First, apply tape and compound to
joints using the banjo.

Before applying subsequent coats,
fill fastener depressions using hand
knife or nail spotter.

When the taping coat has dried, apply
a fill coat of compound using hand
tools. Allow to dry and sand lightly.

Apply a final coat of compound using
a 12

Љ box for flat joints and a 3Љ cor-

ner finisher (attached to corner pump
or angle applicator) for inside cor-
ners.

Scrape away excess compound and
fill in voids using a hand knife. When
compound is dry, sand lightly as
needed.

7 Maintenance and Cleanup

Never permit setting-type com-
pound to harden inside a tool; this
will make the tool difficult or
impossible to clean. Water does
not prevent the chemical harden-
ing of setting-type compounds.
For drying type compound, if you
will not be using a tool for more
than 5 minutes, place it in a
bucket of water. Keeping tools
clean is important, because dried
material built up on and inside
tools will hinder their operation.
Keep moving parts on mechanical
tools lubricated with oil. Blades on
these tools are replaceable, and
need to be changed regularly. For
specific instructions on mainte-
nance, consult the tool manufac-
turer’s recommendations.

Use of cleaning station equipment
makes the cleaning of mechanical
drywall tools quicker and easier,
particularly when setting-type
compounds are used. USG offers
S

HEETROCK

™

Cleanser (available

through the cleaning station man-
ufacturer) to aid in the cleansing
process.

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