How To Use Professional Grade Airless Spray Equipment

Guide to Using Professional Grade Airless Spray Equipment for Best Results

Professional grade airless spray equipment offers incredible efficiency and precision for painting projects, whether working on interior walls, exterior siding and fences, or industrial structures. Mastering the use of this equipment requires a clear understanding of its operation, from setup and priming to testing and applying paint.

This “How To Use Professional Grade Airless Spray Equipment” guide will walk you through the essential steps to ensure successful and smooth painting using airless spray equipment. We’ll also cover best practices for maintenance to help you get the best results possible.

What is Airless Spray Equipment?

Airless spray equipment uses high pressure to pump paint directly from a container through a hose and out of a specially designed spray tip. Unlike traditional sprayers, airless systems do not require compressed air to atomize the paint. Instead, they rely on hydraulic force to push the paint out at a high speed, creating an even, professional-quality finish. This method is ideal for applying paint over large surfaces quickly and uniformly, making it a favorite tool among professional painters and contractors.

Professional Grade Airless Spray Equipment Steps To Painting with a Flawless Finish

Step 1: Assembling Your Equipment

Before you can begin using your airless spray equipment, it’s essential to assemble the system correctly. Each component must be securely connected to ensure smooth operation and to avoid leaks or mechanical issues.

1. Spray Gun: Attach the spray gun to the high-pressure hose. Ensure the connection is secure and tight, as high pressure will flow through the hose and into the gun.
2. Spray Tip: Choose the appropriate spray tip size for your project. Different tips are used for various applications—fine tips for delicate, detailed work and more extensive tips for broad surfaces like walls and ceilings. Attach the tip to the gun, ensuring it’s properly locked.
3. Hose: The hose connects the airless pump to the spray gun. Make sure it is the correct length for your workspace, and verify that both ends are connected tightly.
4. Paint or Stain: Prepare your material for spraying. If necessary, strain the paint to remove any lumps or debris that could clog the spray tip.

Step 2: Priming the Pump

Before applying paint, you need to prime the system. Priming involves preparing the pump and hose by filling them with the material (paint, stain, or other liquids) you will use, removing any air and flushing out water or solvents used for storage.

1. Set the Spray Gun to Prime: Most airless sprayers have a prime/spray setting. Turn the spray gun to the “prime” position.
2. Fill the Suction Tube: Insert the suction tube into your paint or material container. The suction tube pulls the paint from the container into the sprayer.
3. Start the Pump: Turn on the machine and let it run. The pump will begin drawing material from the container into the hose. Let the material flow through the system, keeping the spray gun in its prime position until you see paint or material emerging from the gun.
4. Flush the Water: If the sprayer was previously cleaned or stored with water or another cleaning solution, continue priming until you see pure paint or material flowing out. Any remaining water or cleaning agent should not mix with your paint, as it could dilute the mixture and affect the final finish.
5. Check the Pressure: Adjust the pressure control knob to a low or medium setting to start. Too much pressure can result in over-spraying or uneven application, especially when learning how to use the equipment.

Step 3: Flushing Out Water and Testing Spray Pattern

Once the pump is primed, the next critical step is flushing out any leftover water and testing the spray pattern to ensure the paint flows smoothly and evenly.

1. Flush Out Water Completely: Continue spraying with the gun in the “prime” setting until all water has been flushed from the system. At this point, you should see only paint coming through. It’s essential to ensure no traces of water remain, as they can lead to inconsistent spray or cause clogs.
2. Test the Spray Pattern: With the gun now switched to the “spray” setting, hold the gun about 12-18 inches away from a test surface (such as a piece of cardboard or scrap material). Press the trigger and move the gun steadily across the surface.
3. Inspect the Spray Pattern: The spray pattern should be even, without streaks, gaps, or heavy spots. If the spray looks uneven or has thick lines at the edges of the pattern, you may need to adjust the spray pressure or change the spray tip. Increasing the pressure can help achieve a finer spray while lowering it might reduce overspray.
4. Check for Tip Clogs: If you notice that the spray is inconsistent, there could be a clog in the spray tip. Most professional-grade airless sprayers come with reversible tips that can easily be rotated to clear blockages. Rotate the spray tip 180 degrees, trigger the gun, and let the pressure clear the obstruction. Return the tip to its original position and test again.

Step 4: Application Techniques for Professional Results

You can start painting now that your equipment is set up and primed. Proper application techniques will help you achieve a flawless finish.

1. Maintain a Consistent Distance: Keep the spray gun about 12-18 inches from your painting surface. Moving closer can result in too much paint being applied while moving farther away can create a thinner, uneven coat.
2. Use Smooth, Controlled Movements: Move the spray gun horizontally or vertically in a consistent, overlapping motion. Keep your wrist locked and move your entire arm to ensure even application. Overlap each pass by about 50% to avoid stripes or uneven sections.
3. Maintain a Steady Speed: Moving the spray gun too quickly can cause insufficient coverage, while moving too slowly may result in runs or drips. Practice moving at a controlled pace for the best results.
4. Avoid Tilting the Gun: Keep the spray gun perpendicular to your working surface. Tilting the gun can cause paint to accumulate in some areas, leading to an uneven finish. This is particularly important when working on larger vertical surfaces like walls or fences.

Step 5: Cleanup and Maintenance

Proper cleanup is crucial for extending the life of your airless spray equipment and ensuring it’s ready for your next project. Follow these steps after you’re finished painting.

1. Flush the System: Once you’re done with your project, clean the system by flushing it with a cleaning solution or water (depending on the type of paint used). Keep flushing until all paint is removed and clean liquid flows out.
2. Clean the Spray Tip and Filters: Remove the spray tip and clean it with the appropriate solvent or water. Also, check the guns and the main filters for any remaining paint and clean them as needed. This will help prevent clogs in future applications.
3. Store Properly: Once cleaned, store the sprayer according to the manufacturer’s instructions. For long-term storage, some systems require a unique pump preserver through the unit to prevent internal corrosion or damage.

Troubleshooting Common Issues

Even with proper setup, you might encounter some common issues when using airless spray equipment. Here are a few problems and how to solve them.

1. Inconsistent Spray Pattern: Check for clogs in the spray tip or filters if the spray pattern is uneven or contains streaks. Flushing the system or rotating the tip can often resolve this.
2. Over-spray: Excessive paint build-up around the edges of the spray pattern usually results from the wrong pressure setting. Lowering the pressure or switching to a smaller tip can help reduce overspray.
3. Poor Coverage: Ensure you’re using the right spray tip for the material. A larger tip may be necessary to achieve proper coverage for thicker paints.

Learn More About Commercial Grade / Pro Grade Airless Spray Equipment

Following these steps, you can master professional-grade airless spray equipment and achieve a flawless finish on your next painting project. To learn more about high-quality professional grade airless spray equipment, contact TriTech Industries for expert advice on our guns, tips, hoses, and more, as well as additional recommendations.