USG SHEETROCK Plaster of Paris - Manual

Directions Mixing Use cool, clean water and clean equipment; mix powder and water in proportions shown below. Mix to the consis-
tency of a smooth paste. Do not overthin. Avoid mixing more material than can be used in 15 minutes.
Mixing Mix powder thoroughly into water until completely wet. The initial mix should be slightly thicker or heavier than
Proportions the desired working consistency. Mix until smooth. Let this initial mix soak for approximately one minute. (Note: The
cooler the conditions, the longer the material must soak.) Remix approximately one minute, adding water to achieve
the desired working consistency. Do not mix with other compounds in wet or dry form. Do not retemper mix.
Powder Water Added Application Method
1 lb. (.45 kg) 6 oz. (177.4 mL) Patching
1 lb. (.45 kg) 8 oz. (236.6 mL) Molding and Casting
Setting Time The setting time cannot be altered by dilution with water.
Setting Time Range: 20-30 minutes
Working Time: 15 minutes
Patching Surface must be clean, dry and firm, and free of dust, loose material and grime.
Application
To repair a small hole or crack, brush or wipe area clean. Use sponge to water-dampen area to be patched. Fill
crack or hole with S
HEETROCK Brand Plaster of Paris, using a putty knife and finish flush with the surface. If the
hole or crack is more than 1 Љ wide or 1/4Љ deep, apply a base coat of plaster. Let this harden and apply a second
coat flush with the surface.
Sanding For best results, wet-sand with sponge. Wait until plaster is dry. Saturate sponge with water, wringing out only
enough water to eliminate dripping. Rub area gently using a sweeping motion to remove high spots with as few
strokes as possible. Clean sponge often. If dry sanding, use 120-grit or finer sandpaper.
Decorating After patched surfaces are dry, apply a prime coat of S HEETROCK ® Brand First Coat or an undiluted, good quality,
interior latex flat wall paint with high solids content. Allow to dry thoroughly. Follow manufacturer’s directions for
application of decorating product.
Casting Pour smooth S HEETROCK Brand Plaster of Paris mixture into mold. Be sure to pack plaster into mold with putty knife.
Application This will eliminate air pockets and ensure filling of all contours of casting form. Material will set within 30 minutes.
Carefully release from mold to avoid damaging cast.
Cleanup Clean tools and containers with soap and water immediately after use and before material hardens.
Storage Store in a clean, dry area. One year shelf life under protected storage conditions.
S
HEETROCK
®
Brand
Plaster of Paris
Application Tips
Manufactured by
United States Gypsum Company
125 South Franklin Street
Chicago, IL 60606 800 USG.4YOU (874-4968)
www.usg.com J1807/2-04
©2004, United States Gypsum Company
Printed in U.S.A.
Trademarks
The following trademarks used
herein are owned by United
States Gypsum Company or a
related company: S
HEETROCK .
Note
Products described here may
not be available in all geographic
markets. Consult your U.S.
Gypsum Company sales office
or representative for information.
Notice
We shall not be liable for inci-
dental or consequential dam-
ages, directly or indirectly sus-
tained, nor for any loss caused
by application of these goods
not in accordance with current
printed instructions or for other
than their intended use. Our lia-
bility is expressly limited to
replacement of defective goods. Any claim shall be deemed
waived unless made in writing
to us within thirty (30) days from
the date it was or reasonably
should have been discovered. SAFETY FIRST!
Follow good safety practices.
Read material safety data
sheets and related literature on
products before specification
and/or installation.