SPRAY GUNS
Test Your Side Seals and O-Rings for Proper Seating
After replacing the o-rings in your AP-2 Gun, it’s important to make sure they are sealing properly. In order to test if the side seals are seating properly and the o-ring is sealing, follow these steps:
With the safety on and the gun disconnected from the hose, hook an air hose onto the gun and pull on the trigger. This pulls the chamber back slightly which cuts the airflow coming out of the tip. The air should cease from blowing out of the tip and should only slightly exhaust at the vent near the handle and the air-motor. If the side seal, the o-ring around the side seal or the oring at the screen screw is not sealing the air will push out of the check valve seat.
Continue reading
Maintaining Your Spray Gun
Taking care of your equipment will save you in the long run. The best way to keep your gun spraying is to keep it clean, lubricated and polished. You should also always see the manufacturer’s manual for specific maintenance needs for all of your equipment.
Apply spray better with this trick
Spray mechanics generally prefer a product that maintains a good level of sprayability for processing. Applying or processing spray foams just on the cooler side of the temperature processing spectrum can aid in maintaining a good pattern.
Continue reading
HOSES
Changing the Temperature Sensing Unit on Heated Hose
The equipment used today for spraying plural component urethane foam and coatings provide the means to preheat the A and R chemicals, pressurize the chemical to the manufacturer’s recommended PSI and deliver that conditioned and heated chemical to the gun via a heated hose. Most units today utilize a system which provides automatic hose heat. The proportioners are equipped with a controller which receives a signal from a temperature sensing unit. The signal indicates the temperature of the chemical in the hose from a remote distance from the proportioner and ideally just before the gun.
Troubleshooting Hose Heat with the PMC PK-25
In this episode of Fix-It Friday, we teach you how to identify and fix issues with your spray foam hose heating system using a PMC PK-25 spray foam machine. Hose heat is the biggest technical support issue we get and there are a few common issues that can be easily identified and resolved while on the job site.Continue reading
Keep Your Material Warm
Having warm material is very important for spray foaming, however, it is easy to think a few degrees won’t make a difference. It is important for the health of your equipment and the quality of your work to wait for those few extra degrees to get you the best quality!
Remember to always warm up material to the manufacturers recommended temperature to get the best spray!
