Material Spraying Issues

It’s less common when material will not spray on the ‘A’ side and ‘B’ side at the same time, but when it happens, there could be a number of factors at play. If you find yourself in this position, take a look at these common reasons;

  1. Proper operation of the pumping system. (execute initial startup checks)
  2. The product cold, it doesn’t flow properly.
  3. Failing delivery supply like transfer pump wear or neglect.
  4. Your regulator could be malfunctioning; Are you getting enough air supply to your Transfer Pump?
  5. Failing packings from wear or neglect.
  6. Clogged screens can also cause major issues in proper flow.
  7. Recent crossover in hose or contamination within the gun itself.

Keep Your B-Side Going

The B Side, in general, is less likely to cause contamination in the screens. As a result, B Side screens are often neglected.

One possible cause of B Side pressure loss is the collection of paint chips over time. Spray foam drums are recyclable and during the recycling process, some of the drums are repainted inside. Over time, the B component can soften the paint in the drum, causing it to flake off and collect in the Y-filter assembly – restricting flow to the machine. Making the Y-filter assembly a priority to clean can help prevent the collection of paint chips.

Electrical Connections

Often overlooked when owning and operating spray foam equipment, is the electrical system.  When transporting to and from projects, the spray equipment takes its share of bumps and vibrations that can loosen electrical connections. I recommended rechecking all of the electrical connections at least once every three months. Weak connections can prematurely short circuit or shorten the life of the electrical components.

Best Tool to Have

As Spray Foam Technicians, we recommend one tool you should have on hand that can keep you and your crew up and running. When you suspect that you may have an electrical issue and need to contact a tech for help, one of the first things you may be asked is to confirm voltage’s through the spray system. Having a Multi-Meter on hand in your spray rig will help you to easily determine the answers you need to get your system up and running asap.