Airless Spray Tip Selector
Find The Right Spray Tip For Your Project
Choosing the right spray tip for the material you are spraying will determine the quality of your finish and help you save time and money. Each Graco tip is 100% tested for flow rate to ensure the precision and quality needed to deliver a smooth, professional finish.
Understanding the Numbers
To make sure you always have the correct tip for the project and coating you’re using, it’s easier than you might think to “break the code” of numbers to understand tip sizing.
Two Basic Concepts to Remember:
- The width of the spray fan is important for the type of project you’re spraying
- The size of the spray tip opening relates to the thickness of the material you’re spraying
Breakdown of Spray Tip Numbers:
- The first digit is half of the fan width, the "5" in "517" equals a 10 inch spray fan width (5 x 2 = 10)
- The last two digits are the size of the tip opening in thousandths of an inch, the "17" in "517" means the tip hole size is .017 inch
Check Your Sprayer
Before selecting a spray tip, always make sure you know what sprayer you’re using, and the size spray tips it can support. The pressure volume on each sprayer is different and this determines which size tips can be used. This information can be found in the sprayer manual. Most often the model number of the sprayer corresponds to the largest tip it can support.
- Use smaller tip size when applying thinner materials such as stains and enamels
- Use larger sizes for thicker materials such as exterior, latex and oil based paints
- The larger the size of the tip hole, the faster the material leaves the gun
- A 313 tip sprays faster than a 311 or 411 tip
Understanding Tip Wear and Effects
Since most coatings have solids that cause abrasion, spray tips will wear with normal use.
When a tip wears, the orifice size increases and the fan width decreases. This causes more paint to hit a smaller area, which wastes paint and slows productivity.
It’s important to replace a tip when it gets worn to make sure you get a precise spray pattern, maximum productivity and quality finish on your project.
Tip Wear Advice
Always turn down the spray pressure as low as it can go, while still spraying a good spray pattern. This not only saves paint by reducing overspray but it also reduces tip wear and prolongs pump life.
- Tip life varies by coating. Recommended replacement times:
- Latex - Replace after 15-40 gallons
- Oils & Stains - Replace after 35-60 gallons
- Do not increase the pump pressure – this only wastes paint and causes unnecessary pump component wear.