Patriot Multi-Color Gelcoater Operations Manual
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5. Push the flush valve on the side of the gun block to test solvent flush.
Select Gelcoat Pump Color
6. Connect the carriage assembly to the desired gelcoat fluid section as described in the
Changing Colors section.
7. Connect the accompanying gelcoat hose assembly to the gun and open the ball valve at the
quick disconnect end.
Priming Catalyst to Gun
8. Prepare the gun as follows:
For external mix system:
Remove the catalyst and spray tip from the front of the gun.
For internal mix system:
Tighten the packing nuts on the gun and trigger the gun 10 to 15
times. Snug the packing nuts and repeat triggering, repeating this process three to four
times. Remove the nozzle and mixer from the chamber.
9. Tighten the catalyst packing nut
1
8
to ¼ turn to snug packing.
10. Fill the catalyst jug ¾ full and then purge the air out of the catalyst feed line by slightly tilting
the jug.
11. Open the recirculation valve on the catalyst manifold.
12. Remove the pivot pin on the catalyst drive linkage.
13. Using the catalyst drive, hand prime catalyst back to the jug through the recirculation valve
until there is no air in the tube.
14. Close the recirculation valve.
15. Lock or hold the gun trigger in the open position over an appropriate container.
16. Remove the pivot pin from the catalyst drive linkage.
17. Use the catalyst drive to hand prime catalyst out to the gun until a steady stream is achieved.
Note
Do not reinstall the pivot pin at this time. Open the catalyst recirculation valve
to prevent over pressurizing the catalyst system.
Priming Gelcoat to Gun
Note
The resin pump was tested using oil. It may require up to ½ gallon of gelcoat be
run through the unit to purge any remaining oil from the system.
18. Fill the packing nut cavity ¾ full of TSL or equivalent oil.
19. Insert the gelcoat suction wand into a container of gelcoat.
20. Clamp or tape the resin return hose coming from the bottom of the inline filter to the resin
pickup wand and into the drum.
21. With the gun locked in the open position, slowly increase pump regulator pressure until
pump is running at a slow but steady rate.
