Selection should include
- determining the type of spray gun setup (e.g., fluid needle, nozzle, cap) and material, according to manufacturer's specifications
- performing a spray pattern test on a piece of paper to check the operation of the spray gun before attempting to paint the vehicle.
Process/Skill Questions:
- Why is it necessary to test a spray gun?
- What testing procedures should be used?
- Why are there different sizes of air caps?