Dow GREAT STUFF PRO™ Window & Door - Manual (Page 3)

3
2. The foam dispensing gun is
recommended to control the
size of the foam bead (from
1/8" to 3" [3 mm to 75 mm]).
This is achieved by squeezing
the trigger on the foam dis-
pensing gun or by adjusting
the flow control knob on the
back of the gun to set how
far the trigger can be pulled
(Figure 7). If using a straw
dispenser, the force exerted
on the button controls the
size of the foam bead.
3. If the gap is overfilled, trim
away excess foam with a
sharp knife (Figure 8). Foam
will be tack-free within 9
minutes and can be trimmed
in 1 hour. It is fully cured
12 hours after application.*
If product remains in the
can of GREAT STUFF PRO
™
Window & Door, the gun
may be left attached for up
to 30 days. Always close
the flow control knob to
prevent air from entering
the gun when not in use.
4. Clean foam dispensing gun
periodically by rubbing the
end on soft wood to free it
from foam. Do not use a
sharp object to clean foam
dispensing gun. Use GREAT
STUFF PRO
™ Gun Cleaner
between extended periods
of non-use.
Cleanup
• On solid surfaces, uncured
foam can be dissolved with
GREAT STUFF PRO
™ Gun
Cleaner.
• For skin and other surfaces,
cured foam must be mechani-
cally removed or allowed to
wear off in time.
• To clean foam dispensing gun,
install a can of GREAT STUFF
PRO Gun Cleaner to the foam
dispensing gun and spray
until all foam is blown out
of the 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.
• Use GREAT STUFF PRO Gun
Cleaner in well-ventilated
areas only. See the Material
Safety Data Sheet for respiratory
protection requirements.
Solvent and propellant are
flammable.
• Do not leave a can of cleaner
mounted on the foam dispens-
ing gun. This will dissolve the
lip seals inside the gun and
render it useless. Foam escap-
ing at the handle or trigger
indicates a faulty seal.
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
™ Window & Door imme-
diately. If left without a can
attached, exposure to air and
moisture will cause the foam
in the gun to cure. A fresh
can of foam may be left
attached to a foam dispensing
gun that has been cleaned
for up to 30 days.
Figure 8
TIP
Always close the flow
control knob when the
gun is not in use.
TIP
Treat your gun like a
tool. The better you
take care of it, the
longer it will last.
®™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow
*Dependent upon temperature, relative humidity and size of foam bead
Figure 7