| PROBLEM |
CAUSE |
SOLUTION |
| 1)Material not flowing through nozzle. |
Gelled or hardened adhesive in nozzle.
Adhesive can harden in the nozzle at 70°F in about 5-7 minutes.
As the air temperature increases, gel time is shorter. |
Replace mixing nozzle. |
| Too cold for adhesive to flow. |
Keep material in heated storage area: store Epoxy at 45°-90°F; store Acrylic at 32°-80°F. |
| Surface is crusting. |
Remove nozzle, dispense small amount of material, then replace nozzle. |
| Obstruction in nozzle or on outlet of cartridge. |
Change to new nozzle or remove obstruction from cartridge outlet. |
| Insufficient air pressure to the pneumatic tool. |
Set air pressure at 80 - 100 psi. |
|
| 2) Leakage from front of threaded section of cartridge. |
Nozzle coupling nut is cross-threaded. |
Remove coupling nut and reattach, taking care not to cross-thread. |
| Cracked or punctured cartridge. |
Do not attempt to dispense damaged cartridge. |
|
| 3) Material leaking from back of cartridge during dispensing. |
Excessive pressure resulting in swelling of cartridge or misalignment of retaining wiper. |
Regulate air pressure on pneumatic tool. |
| Do not overdrive manual tool. |
| See problem 1 to find out why material is not flowing. |
| Misalignment of tool push rods and cartridge. |
Adjust/repair dispensing tool. |
| Misalignment of cartridge. |
Make sure cartridge is inserted correctly. |
|
| 4) Resin (white) getting into hardener (black) chamber or vice versa. |
Excessive pressure. |
Regulate air pressure on pneumatic tool. |
| Do not overdrive manual tool. |
| Check to see mixing nozzle is not filled with gelled or hardened epoxy. |
| Make sure one of the cartridges is not leaking out of the bottom (refer to problem 3). |
|
| 5) Hardener (black) only being dispensed or mixture is too dark. |
Adhesive too cold to flow and mix properly. |
Keep material in heated storage area: store Epoxy at 45°-90°F; store Acrylic at 32°-80°F. |
|
| 6) Adhesive won't harden in hole. |
Adhesive not mixed thoroughly. |
Abandon hole and drill new hole. If not possible, call Simpson. |
| Make sure wipers on cartridge are equalized prior to dispensing and adhesive being dispensed is a uniform color before filling holes.
Attach nozzle and dispense adhesive to the side until properly mixed (uniform color). |
| Base material too cold for epoxy being used. |
Allow more time for epoxy to cure. |
| Use Acrylic-Tie when base material temperature is below 40°F. |
Epoxy-Tie Safety Data