Spray Foam Dispensing Unit
U.S. Patent #6,345,776 – Other Patents Pending
Cone Tip Nozzle
• conical spray pattern
• directed, high-velocity flow
• clear and solvent cleanable
• easily adapted for pour-in-place
applications
Fan Tip Nozzle
• wide vertical spray pattern for
large area coverage
• improved uniformity and
surface appearance
• speeds application and produc-
tivity
• clear and solvent cleanable
Pour-in-Place
• use extension tubing* for liquid
pour application
• for injection into molds and cavities
• use with slow rise foam
systems or cavity fill
* Extension tubing not provided
Troubleshooting two-component foam sealant
Problem
Poor chemical flow
stop
Foam leaking from hose connections
Dark crunchy foam/ off-ratio (A-rich)
White spongy or shrinking foam/ off-ratio (B-rich) Material is too cold
Sputtering from nozzle
If kit is still not fully operational, stop spraying and contact the manufacturer representative.
Use Solvents!
All clear dispensing unit nozzles are easily cleanable and solvent
resistant. To clean nozzles, liquid chemical must be dissolved
prior to it's complete chemical reaction by flushing the nozzle
with a suitable solvent such as acetone. Gun face can be kept
clean with the use of petroleum jelly on the face or with a soft
cloth to remove residue. Cleaning a nozzle more than twice is
not recommended, unless the static mixing element is removed
and replaced, in order to prevent residue build-up on this mix-
ing element.
Needle Valve Sealing Ports
• Keep needle valve sealing ports clean.
• Use of enclosed petroleum jelly is recommended to cover the
face of the unit in order to prevent contamination by cured
foam or chemical. It also aids in keeping the sealing ports clean.
• If necessary, use a soft cloth or rag to remove any cured foam
from around the ends of the needle ports.
Possible Cause
Tank valves not fully open
Tank valves in incorrect position Place tank valves in upright position
Material is too cold
Hoses not tightened
Material is too cold
Clogged nozzle
Blockage of one chemical port
Gun crossover
Clogged nozzle
Blockage of one chemical port
Gun crossover
Tanks are empty
Clogged nozzle
Hose blockage
Solution
Turn tank valves counter-clockwise until they
Chemical temperature must be between 75-85°F
(24-29°C)
Tighten all hose fittings
Chemical temperature must be between 75-85°F
(24-29°C)
Replace nozzle
Clean gun face and apply petroleum jelly
Replace hose
Chemical temperature must be between 75-85°F
(24-29°C)
Replace nozzle
Clean gun face and apply petroleum jelly
Replace hose
Switch to new kit
Replace nozzle
Replace hose