- How do I select the correct paint sprayer for my application?
- How do I choose the right spray tip?
- Why can't I achieve a proper spray pattern?
- How do I WINTERIZE my airless paint sprayer?
Q: How do I select the correct paint sprayer for my application?
A: Please contact Northwest Spray & Compressor (503) 692-7266 or see the quick comparison guide: Sprayer Comparison Guide
Q: How do I choose the right spray tip?
A: There are two variables to consider when selecting a spray tip, the size of the tip hole and the width of the spray pattern. The tip hole is also known as the orifice, measured in thousands of an inch. The type of the material being sprayed will determine the correct orifice size. Use smaller orifice sizes for lower viscosity materials such as stains and lacquers, and use larger orifice sizes for heavier coatings such as latex or oil-based paints. To determine the best orifice size for the specific material you are spraying, it is recommended for you to call the manufacturer because they have tested their product and they can tell you what works best based on their experience. If this is not possible, contact us at (503) 692-7266 for some general guidelines. Pattern width depends on the object that is being sprayed. Larger tips are recommended for wider surfaces. For more details see How To Choose The Right Tip and Understanding Airless Spray Tips
Q: Why can't I achieve a proper spray pattern?
A: The sprayer design is an on demand system. When the gun trigger is pulled the sprayer should cycle. If the sprayer is running continuously read below: The inlet or outlet check valve is stuck open. Shut the sprayer off, un-plug the electric cord, and rotate the prime/spray valve handle down to relieve any pressure in the sprayer, and remove the blue paint hose from the sprayer. Unscrew the inlet and outlet check valves. Clean the ball and seat of each valve. Remove all debris and inspect the ball to make sure that it is loose and can sit tightly on the seat. Inspect the o-ring around the valve housing for damage and replace if necessary. Screw the valve back into the pump and securely attach the hose.
* Leaky joints or a damaged suction hose will allow air into the sprayer. Inspect the suction hose for leaks and tighten or replace if necessary