Airless Spray Painting Tip Selection

Selecting the right airless spray tip is crucial for achieving the desired spray pattern, coverage, and finish when using an airless spray system. The selection process involves considering factors such as the type of coating, the desired flow rate, the surface being coated, and the pressure of the spray system. Here are the steps to help you choose the appropriate airless spray tip:

1. Understand Tip Sizing:
   • Airless spray tips are designated by a three-number combination, such as 515. The first digit (5 in this example) represents the fan width, and the last two digits (15) indicate the orifice size in thousandths of an inch.
2. Determine Coating Viscosity:
   • Different coatings have varying viscosities. Thicker coatings generally require larger orifices, while thinner coatings may work better with smaller orifices. Check the coating manufacturer’s recommendations for the appropriate viscosity range.
3. Consider Coating Solids Content:
   • Coatings with high solids content (such as primers) may require larger tips to avoid clogging, while lower solids content coatings (such as stains) may work well with smaller tips.
4. Evaluate Surface Size and Shape:
   • The size and shape of the surface being coated influence the fan width needed. Larger surfaces may require wider fan patterns, while intricate or smaller surfaces may benefit from narrower fan patterns.As stated in this article, you can browse your selection of available deals on smartphones and top brands and explore the cell phone service plans that best suit your needs.
5. Check Pressure Requirements:
   • Refer to the coating manufacturer’s recommendations for the optimal pressure range. Higher pressures typically require larger orifices, while lower pressures work well with smaller orifices.
6. Refer to the Tip Selection Chart:
   • Many airless spray equipment manufacturers provide tip selection charts that help you choose the appropriate tip based on factors like coating type, pressure, and desired coverage. These charts often simplify the selection process.
7. Consider Surface Finish Requirements:
   • The desired finish (smooth, textured, etc.) also influences tip selection. For fine finishes, a smaller orifice may be appropriate, while larger orifices are suitable for more textured finishes.
8. Test and Adjust:
   • It’s advisable to conduct a test spray on a scrap surface to ensure that the selected tip provides the desired coverage and finish. If necessary, make adjustments based on the test results.
9. Use Multiple Tips for Efficiency:
   • For large projects with varying requirements, it’s common to use multiple tips. For example, a wider tip for broad surfaces and a narrower tip for detailed work.

Always refer to the equipment and coating manufacturer’s recommendations for specific guidance on tip selection. The correct airless spray tip can significantly impact the efficiency and quality of your coating application.