USG SHEETROCK Lightweight Setting-Type Joint Compounds Easy Sand - Manual

Preparation In cold weather during gypsum panel joint finishing, minimum surface, water,mix, and air temperature of 45 °F
must be ensured until joints are completely dry. Adequate ventilation shall be provided to carry off excess moisture.
Gypsum Panel Position and apply S heetrock ® Brand Gypsum Panels in accordance with manufacturer’s recommendations.
Joint Treatment Mix compound according to directions on bag. If using S heetrock Brand Gypsum Panels, SW Edge, prefill the
“V” grooves formed by abutting tapered eased edges of the panels with e aSy S and . Apply compound
directly over “V” groove with a flexible 5" or 6" joint finishing knife. Wipe off excess compound that is applied
beyond the groove. Allow prefill compound to harden prior to the next application (tape-embedding coat).
Cover joint with a thin layer of compound and embed tape, leaving about 1/32" of compound under
feathered edge and a thin layer over the tape. After compound has set, apply second coat, feathering out
approximately 2" beyond first coat. After each coat is applied, smooth away any tool lap marks or other
imperfections prior to hardening action. Finish fastener heads with three coats of joint compound; finish corner
bead and inside corners as required with at least two coats, feathered and smoothed out onto panel faces.
For priming and decorating with paint, texture, or wallcovering, follow manufacturer’s directions for materials
used. All surfaces must be dry, dust-free, and not glossy. A prime coat of S
heetrock ® Brand First Coat or a
good-quality interior latex flat wall paint should be applied undiluted and allowed to dry before decorating.
Walls to be covered with wallpaper or vinyl wallcovering should be sealed per manufacturer’s recommendations.
To improve fastener concealment where gypsum panel walls and ceilings will be subjected to severe artificial
or natural side lighting and be decorated with a gloss paint (eggshell, semigloss, or gloss), the gypsum panel
surface should be skim-coated with conventional weight All Purpose or UltraLightweight All Purpose joint
compound to equalize suction before painting (see publication J510).
Filling and Finishing over Grind high plane differences in concrete level with adjacent area; also remove any form oil, efflorescence,
Interior Poured Ceilings and greasy deposits. Prime exposed metal with a good rust-inhibitive primer. Fill offsets or voids with joint
compound. Apply additional coats of joint compound as necessary, after each coat has set, but not necessarily
dried. After the final coat of joint compound has dried, apply an undiluted coat of S
heetrock Brand First Coat
or a good quality latex flat wall paint with high solids content over entire surface and allow to dry. For textured
ceiling, apply S
heetrock ® Brand Ceiling Spray Texture–QT in a uniform coat at a rate not exceeding 10 ft. 2 /lb.
Exterior Joint Treatment Mix joint compound according to directions on the bag. Do not overmix or use at temperatures below 45 °F
(7 °C). Prefill joints of S heetrock ® Brand Exterior Gypsum Ceiling Board with compound. After prefill has set,
embed S heetrock Brand Joint Tape centered over joint. When compound has set, immediately apply fill coat.
Apply compound over flanges of zinc control joints, corner beads, and metal trim. Spot fastener heads. After
fill coat has set, apply finishing coat of compound. Completely cover all joints, angles, beads, control joints,
and fasteners. After the compound has dried, apply one coat of a good-quality oil or latex exterior primer. Then
follow with at least one coat of a good-quality latex exterior paint.
Application Tips S
heetrock ®
Brand Lightweight
Setting-Type Joint Compounds
e
aSy
S
and
™
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