Application Tips
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Firecode® Brand
Compound
Preparation
Application
Trowel Application Mix Firecode Brand Compound according to directions on package. Using a trowel, putty knife or spatula, scoop
Spray Application— Firecode Brand Compound Powder. Use drinkable water and clean mixing equipment. Mix 8.5 to 9.0 pints water
Mixing
per 15 lbs. of Firecode Brand Compound. Mix powder thoroughly into water until powder is completely wet.
Mix until smooth. Let initial mix soak approximately one minute. Remix approximately one minute, adding water
necessary to achieve desired working consistency.
Spray Application— Roto/stator (Moyno pump) or peristaltic pump may be used. Use minimum length material hose with minimal line
Spray Equipment
water prior to spray application. Clean equipment thoroughly between and after applications. Use plaster system
scouring sponges to prevent buildup inside hoses.
pole gun with 1/4" to 3/8" round orifice. Use 3/4" to 1" i.d. material hose, 3/8" atomizing hose and 1/2" air line
from the compressor to the pump.
Maintain minimum surface, mix and air temperature of 50° F (10° C) within the building during and after
installation. Clean substrate of dirt, dust, grease, oil, efflorescence, loose material and other matter.
the compound from its container and work it into the penetration opening. Apply compound to minimum 1/2" or
1" thickness (per system specifications) on top of safing insulation. Ensure that compound is in contact with all
surfaces and that entire opening is filled with safing (if required for system applications) and compound.
Do not retemper the powder. Hardening cannot be prevented or delayed by dilution with water. Do not
intermix previously mixed or sprayed material into freshly mixed material. Intermixing will accelerate the
chemical setting of
and unsatisfactory surface matrix harness. Do not intermix with other types of compound. Store bags in a dry
place. If moisture damage occurs, do not use any set lumps of material.
splices to reduce clogging. Product will be tank stable for one hour of spraying time. Prime pump and hose with
Rotor/stator (Moyno pump). Use Robbins-Myers 2L4 pump or similar equipment as minimum pump size, with
Firecode Brand Compound, causing short working time, resulting in substandard bond
Peristaltic pump. Use pump with minimum 1" i.d. internal pumping and material hose. Use pole gun with 1/4" to
3/8" round orifice. Use minimum 1" i.d. material hose, 3/8" atomizing hose and 1/2" air line from the compressor
to the pump.
Spraying Spray application rate of Firecode Brand Compound is approximately 2 gal. (462 cu. in.) per min. Typical spray
patterns are between 1'-2' using 20-30 psi air pressure. The spray gun should be held as close to the penetration
being filled as possible to reduce overspray and waste, typically 1'-2'. Avoid excessive air pressure. Material may
be applied up to a 1" finished thickness in a single coat; however, best results are achieved by building up to the
finished thickness in 1/2" coats.
application, allowing for quick recoating or hand tooling. Set time of the sprayed material will be approximately
30% less than for the unpumped material.
Do not recycle material that has been pumped (such as wipedown or initial flushes of material). The pumping
process accelerates set. If recycled material is mixed with fresh product, the material will set faster than normal
and will set up in the equipment. The practice of recycling sprayed material will result in bond failure and
unsatisfactory surface matrix hardness.
Do not let material sit in the hose for longer than 20 min. If longer breaks are needed, flush out the hose with
water and then restart.
Firecode Brand Compound will stiffen approximately 15 min. after spray
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Trademarks
The following trademarks used
herein are owned by United
States Gypsum Company or a
related company:
Firecode and USG.
Note
Products described here may
not be available in all geographic
markets. Consult your
U.S. Gypsum Company sales
office or representative for
information.
Manufactured by
United States Gypsum Company
550 West Adams Street
Chicago, IL 60661
Notice
We shall not be liable for incidental
or consequential damages,
directly or indirectly sustained,
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
liability 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.
800 USG.4YOU (874-4968)
usg.com
Safety First!
Follow good safety practices.
Read material safety data
sheets and related literature
on products before specification
and/or installation.
J1772/rev. 4-13
© 2013 United States Gypsum Company
Printed in U.S.A.
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