Decorating products preparing the panels – USG Manufactured Housing Handbook User Manual

Page 5

Priming

HEETROCK

௡ Brand First Coat

is a flat latex paint specially formu-
lated to provide an excellent first
(prime) coat over gypsum panels.
Conventional sealers help eliminate
porosity variations, but typically won’t
correct texture variations.
Conventional paint primers, on the
other hand, help correct texture dif-
ferences but usually will not equalize
porosity. First Coat is unique because
it minimizes both texture and porosity
differences for easy, problem-free
decorating. Not intended as a finish
coat, and is not a vapor-retardive
coating.

Textures

Aggregated Versus Unaggregated
Textures

Aggregated textures contain clearly
visible particles that “stand
out” when dry for a texturing effect
similar in appearance to acoustical
ceiling finish. Unaggregated texture
does not contain such particles; its
final appearance is determined
largely by the method of application.

HEETROCK

MH Brand Aggregated

Ceiling Spray Texture (T

-S

PRAY

௣

Medium and Coarse)

produces a handsome simulated
acoustical ceiling finish (with no
acoustical correction). It mixes easily,
offers excellent coverage with low
aggregate bounce-back during spray-
ing, and masks minor surface defects.
Available in medium and coarse.

HEETROCK

MH Brand Unaggregated

Spray Texture (T

-T

௣)

is an unaggregated texture for use on
interior walls and ceilings in manufac-
tured housing. It can be easily applied
using spray equipment, brush, or
roller, and produces a variety of tex-
ture patterns from bold spatter/
knockdown to light orange peel.

HEETROCK

௡ Brand Ceiling Spray Texture

(QT)

is available aggregated with perlite,
polystyrene, or poly/perlite, and in
fine, medium, and coarse versions. It
offers excellent hide and firmness,
and dries to a white finish.

HEETROCK

Brand Wall and Ceiling Spray

Textures (Aggregated and
Unaggregated)

produce a variety of texture patterns
from bold spatter/knockdown to fine
orange peel. Provide superior cover-
age and help conceal minor substrate
defects. Application by spray and/or
hand-tooled by broad knife, brush, or
roller, depending on pattern desired.

HEETROCK

Brand Wall and Ceiling

Texture (Multi-Purpose)

is an unaggregated texture coating
for producing fine to medium texture
patterns (such as fine orange peel
and crowsfoot-stipple finishes) on
walls and ceilings. Textured effect
obtained by brush, roller, or spray
application. Helps conceal minor sur-
face defects.

HEETROCK

Brand Wall and Ceiling Spray

Texture (Sand Finish Texture 12)

is a powder product producing a fine
sand finish on walls and ceilings.
Combines easy mixing, fast drying,
excellent coverage, and good con-
cealment. Apply by spray application
only. An ideal base for wall paints;
may be left unpainted on ceilings.

HEETROCK

Brand Wall and Ceiling

Texture Paints

are also available in ready-mixed
form, including Sand Finish Texture
1, Ripple Finish Texture 2, and
T

EXOLITE

Sanded Paste Stipple.

For a complete description of all the
textures and finish products available
from USG, please consult United
States Gypsum Company publication
SA933.

Decorating Products

Preparing the Panels

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Read all instructions through before
installing gypsum panels. Prepare a
plan for each assembly to be con-
structed, and ensure that you have
the right sizes of board, sorted in the
right quantities, to avoid extra han-
dling. A rolling cart at the assembly
can be easily loaded from a fork lift
in the material aisle, then moved up
and down the fixture as needed to
reduce the carrying required.

1 Marking

Measure and mark panel size
desired.

2 Cutting

Line up straightedge with the
marks and hold firmly against the
panel. Draw pencil line as guide
for scoring. Score through paper
and lightly into the core with a
sharp utility knife.

To break the panel core, securely
grasp the board edges on both
sides of the score line and snap
board with a quick, firm move-
ment.

Use utility knife with sharp blade
for scoring. Complete cutting by
running knife through back paper
for the length of the panel and
snapping back to face.

After cutting the panel, smooth
the cut edge with a rasp. Be sure
to keep edge as square as possi-
ble. Always wear a dust mask
when sanding or rasping.

Tip
Gypsum panels are heavy and
may bend or snap under their
own weight. Be sure panels are
properly supported prior to
scoring.

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