The viscosity cup is used to indicate if a spray material is thick or thin. Materials should be tested before spraying to see if thinning is required. The correct viscosity is important to ensure the material being sprayed atomizes correctly and sprays evenly. 

HVLP Hints & Tips

• Preparation is essential - remember to mask around the areas you are not spraying.
• Take the time to ensure paint viscosity is correct. Thin paint as necessary using water or relevant thinners.
• If you've never sprayed before, practice for a few minutes on a piece of cardboard to develop your technique.
• Allow time for drying between coats.
• Fine mists will generally dry faster than heavier coats. This will allow you to build up coats faster and there is less likelihood of runs.
• Avoid spraying when windy.