How to Choose the Correct Airless Spray Tip Size

The spray tip is the smallest part of your airless sprayer and arguably the most important. It controls how much material comes out, how wide the pattern spreads, and how the finish looks when it dries. Get the tip size right, and the machine does its best work with less effort. Get it wrong and you fight tails, overspray, poor coverage, and wasted paint no matter how good the pump is. This guide explains how tip sizing actually works and how to pick the correct tip for the material and the job in front of you.

Understanding the Tip Number

Airless tips are described with a three-digit number, and once you understand it, choosing a tip becomes simple. The first digit relates to the fan width. Doubling that first digit gives you the approximate spray width in inches when the gun is held about a foot from the surface. A tip with a first digit of five lays down roughly a ten-inch fan, while a first digit of three gives about six inches.

The second two digits are the orifice size in thousandths of an inch, and this is what controls how much material flows. A larger orifice passes more paint and is needed for thicker coatings, while a smaller orifice is for thin materials and fine finishes. So a tip stamped 515 sprays a ten-inch fan through a fifteen-thousandths opening. Reading the number this way tells you almost everything you need before you ever pull the trigger.

Match the Orifice to the Coating

The single biggest mistake people make is choosing an orifice that does not suit the material. Thin coatings like stains, lacquers, and clear finishes need a small orifice, usually in the nine to thirteen thousandths range, so the material atomizes properly and lays down smoothly. Push thin material through a large orifice and you flood the surface with runs and sags.

Medium coatings like interior latex and most wall paints work well in the thirteen to seventeen thousandths range. Heavy materials such as exterior acrylics, primers, and elastomerics need larger orifices, often seventeen thousandths and up, because a small opening simply cannot pass enough of the thick material to spray cleanly. When the orifice is too small for the coating, the pump strains, the pattern tails, and the tip wears out fast.

Match the Fan Width to the Surface

Fan width is about efficiency and control. A wide fan covers large flat areas like walls and ceilings quickly with fewer passes, which saves time and reduces fatigue. A narrow fan gives you control on smaller work like trim, railings, and tight detail where a wide pattern would just create overspray. Choosing the fan to suit the surface keeps your coverage even and your material on the work instead of in the air.

Make Sure the Tip Suits the Gun

A tip only performs as well as the gun and machine behind it. Larger orifices demand more flow than smaller pumps can deliver, so a tip that exceeds your sprayer rated tip capacity will starve and tail no matter how you adjust it. Always check that your chosen tip falls within your machine maximum tip rating. The gun itself also needs to be in good shape, with a clean filter and a sound seat, which is why keeping quality titan spray gun parts on hand keeps your tips performing the way they should.

When the Tip is Not the Problem

A worn tip is often blamed for issues that actually come from elsewhere in the system, and the reverse is true too. If you have the right tip for the job but the pattern still looks wrong, the fault may be pressure or a worn gun rather than the tip itself. Our guide on troubleshooting Titan pressure problems helps you confirm whether the machine is feeding the tip properly before you go buy a new one.

Replace Tips Before They Cost You

Tips wear out faster than most people expect, and a worn tip quietly costs you money on every job. As the orifice erodes, the fan narrows and the flow increases, so you use more paint while getting worse coverage. A general rule is that a worn tip can increase material use by a noticeable margin while making the finish worse. Swapping tips on a sensible schedule pays for itself in saved paint alone. For the full reference on tips, coatings, and how every Titan component works together, the master titan paint sprayer parts guide pulls it all together.

Final Thoughts

Choosing a tip comes down to two questions. What is the material, and what is the surface? The orifice size answers the first, the fan width answers the second, and your machine capacity sets the limit on both. Learn to read the three-digit number, match it to the job, replace tips before they wear out, and you will get cleaner finishes with less paint and far less frustration.