TIP
Never leave a foam dispensing gun
without a can of adhesive attached
unless it has been thoroughly
cleaned with GREAT STUFF PRO
™
Gun Cleaner.
Cleanup
• Excess adhesive can be cleaned from
the substrate while still uncured
using a dry cloth, putty knife or paint
scraper. Uncured adhesive can be
removed with GREAT STUFF PRO
™
Gun Cleaner. Cured adhesive must be
mechanically removed or allowed to
wear off in time.
• For short-term storage, tighten the
flow control knob until fully closed.
Use can within 30 days of initial use.
Store upright with foam dispensing
gun attached. To reuse, shake vigor-
ously for one minute before dispensing.
Adjust flow control knob to the open
position.
NOTE:
If this happens, the gun
should be replaced. If the foam
dispensing gun has not been cleaned,
add a new can of GREAT STUFF PRO
™
Wall & Floor Adhesive immediately. If
left without a can attached, exposure
to air and moisture will cause the
foam in the gun to cure. A fresh can
of adhesive may be left attached to a
foam dispensing gun that has been
cleaned for up to 30 days.
TIP
Treat your gun like a tool. The
better you take care of it, the longer
it will last.
• Read the label and Material Safety
Data Sheet carefully before use.
• GREAT STUFF PRO
™
Gun Cleaner
contains isocyanate and a flammable
blowing agent. Vapor may travel to
other rooms. Ensure adequate ven-
tilation. Shut off all pilot lights and
extinguish open flames; eliminate
all sources of ignition before use. Do
not smoke or use lighters or matches
while dispensing foam.
• Do not breathe vapor or mist. Use in
well-ventilated areas or wear proper
respiratory protection. Isocyanate is
irritating to the eyes, skin and respira-
tory system, and may cause sensitiza-
tion by inhalation or skin contact.
• GREAT STUFF PRO
™
Gun Cleaner is
very sticky and will adhere to most
surfaces and skin. Do not get foam
on skin. Wear gloves, and goggles or
safety glasses. Cured foam must be
mechanically removed or allowed to
wear off in time.
• The contents are under pressure. The
can may burst if left in areas suscep-
tible to high temperatures, such as
motor vehicles, or near radiators,
stoves or other sources of heat. Do not
lace can in hot water. Do not puncture,
incinerate or store at temperatures
above 120ºF (149ºC).
• GREAT STUFF PRO
™
Gun Cleaner
should not be used around heaters,
furnaces, fireplaces, recessed lighting
fixtures or other applications where
the foam may come in contact with
heat-conducting surfaces. GREAT
STUFF PRO
™
foam will burn if
exposed to open flame or sparks
from highenergy sources, and it will
start to thermally degrade if exposed
to temperatures above 240ºF (116ºC)
for long periods of time.
NOTE:
GREAT STUFF PRO
™
Wall &
Floor Adhesive reaches initial bond
within two hours, and is fully cured
in about seven days. Cure times will
be shorter at higher temperature
and humidity, and longer at lower
temperature and humidity.
5. Mechanical fasteners must be installed
soon after adhesive application in all
cases. Assemblies must be compressed
to enable GREAT STUFF PRO
™
Wall &
Floor Adhesive to aggressively bond
to the materials. Mechanical fasteners
should be installed within 15 minutes
after applying for best bond.
• For long-term storage, unscrew can
and use GREAT STUFF PRO
™
Gun Clean-
er to clean uncured adhesive from the
exterior assembly. Wear gloves and
safety goggles while cleaning the gun.
To clean the foam dispensing gun’s
interior assembly, invert can of cleaner
and screw onto adapter, being care-
ful not to overtighten. Spray until all
adhesive is blown out of the foam dis-
pensing gun and only cleaner is visible
(approximately half the can of cleaner
will be used). Allow the gun containing
the solvent to sit for several minutes
and repeat with a second flush.
• Do not leave a can of cleaner mounted
on the foam dispensing gun. This will
dissolve the lip seals inside the gun
and render it useless. Foam escaping
at the handle or trigger indicates a
faulty seal.
