Foamseal troubleshooting
Troubleshooting Procedures for Foamseal Two-Component Disposable
Foam Kits 110, 200, 300, 600 & 1000
Always read through and follow the full instructions and set up guidelines.
Checking the Gun for Proper Function
Good quality foam is dependent upon one-to-one ratio dispensing. The easiest way to
determine that you have good ratio is to observe the stream of chemicals coming out of the
gun before they pass through the mixing nozzle. Be sure that both chemicals are dispensing
from the gun PRIOR to your application, ALWAYS do a test shot into a waste container.
To do this, remove the nozzle from the gun and point the gun into a waste container. Pull the
trigger and observe the chemical streams. You should see two chemical streams crossing
over each other and flowing at equal velocity.
Know that the "A" component is light brown in colour and the "B" component is white (or
nearly clear) in colour.
Unequal Chemical Flow from the Tanks
If you see more "A" chemical flowing than "B" chemical, your foam is probably darker in
colour and may have a crunchy, glassy surface.
OR
If you see more "B" component than "A" component, your foam is probably whiter in colour
with a spongy surface texture.
First confirm the temperature of the foam, substrate and the ambient temperature. The
canisters should be brought to a temperature between 60 & 80°F (15.60°C & 26.70°C), ideal
substrate temperature is between 60°F and 80°F (15.60°C & 26.70°C) and the ambient
temperature should be between 60 and 100°F (15.60°C & 37.70°C).
If the temperature is right for dispensing, then check the tanks. Be sure one is not empty. Be
sure the valves are turned all the way on. Shake the tanks vigorously and try again.
If all of these things seem to be right but the problem persists, shut down the system and
Contact Us.
Temperature Issues
When dispensing polyurethane foam, two temperatures must be considered.
First and most important is the chemical temperature. If the chemical temperature is not
right, you will not dispense good quality foam.
Ideal chemical temperature is between 60°F and 80°F (15.60°C & 26.70°C).
Materials may be stored below 70°F (21°C), however the temperature of the materials must
be bought up to their optimum working temperatures prior to application. Canisters stored in
low temperatures may require more than 24 hours to warm their chemical contents.
Good quality foam is light cream in colour. It will cure to be tack free in 30 to 45 seconds.
After approximately 20 minutes, it will be firm to the touch with an even skin.
If the chemicals are too cold, you will likely dispense too much "A" component. This foam will
be darker in colour and may have a crunchy, glassy surface texture. Warm the tanks, shake
them vigorously and check the chemicals flow evenly from the face of the gun.
If the chemicals are too warm, you will likely dispense too much "B" component. This foam
will be whiter in colour and have a spongy surface texture. Cool the tanks, shake them
vigorously and check the chemicals flow evenly from the face of the gun.
The second temperature consideration is that of the substrate. This is important to ensure
the optimum yield and good adhesion.
