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Helpful Hints

Tip Number Calculation:

• The first digit is half of the fan width, the "3" in "310" equals a 6 inch spray fan width (3 x 2 = 6).
• The last two digits are the size of the tip opening in thousandths of an inch, the "10" in "310" means the tip hole size is .010 inch.

Speed Advice:

• 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 312 tip sprays faster than a 410 tip.

Understanding Tip Wear:

Choosing the right spray tip is essential for ensuring a quality finish -- no matter which coating material is being sprayed. However, spray tips will wear with normal use.

It’s important to replace a tip when it gets worn to ensure a precise spray pattern, maximum productivity and quality finish. 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.

Tip life varies by coating, so if a tip is worn, replace it. Extend tip life by spraying at the lowest pressure that breaks up the coating into a complete spray pattern (atomize).

Do not increase the pump pressure; it only wastes paint and causes unnecessary pump component wear.

Recommended Spray Tip Replacement Time:
Latex - Replace after 15-40 gallons
Oils & Stains - Replace after 35-60 gallons

Does your tip need replacing? Buy a Graco Spray Tip and get better results - fast.