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Graco 90-521 Flat Universal Spray Tip

Graco 90-521 Flat Universal 521 Spray Tip provides a 10" fan pattern with a 0.021" orifice, ideal for ultra-heavy coatings and high-build professional applications.

  • Tip Size: 521
  • Fan Width: 10 inches (at 12” distance)
  • Orifice Size: 0.021 inch
  • Compatible with RAC IV & RAC V guards
  • Best for ultra-heavy latex, elastomeric, and industrial coatings

$15.47
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Graco 90-521 Flat Universal Spray Tip for Ultra-Heavy Coatings

Compatible Machines

  • Graco Airless Paint Sprayers (Professional & Contractor Models)
  • Graco Magnum Series Airless Sprayers
  • Graco Ultra Series Airless Sprayers
  • Graco ST Series Sprayers
  • Graco LineLazer Series (with RAC IV or RAC V guard)
  • All airless sprayers compatible with RAC IV or RAC V tip guards

Product Overview

The Graco 90-521 Tip Flat Universal 521 Pkgd is engineered for ultra-heavy coatings, featuring a 10-inch fan pattern and a 0.021-inch orifice. This 521 spray tip delivers maximum material flow for demanding professional applications.

The first digit (5) represents the fan width, producing a 10-inch spray at 12 inches from the surface. The last two digits (21) indicate a 0.021-inch orifice, allowing ultra-thick coatings to be applied efficiently and evenly.


Key Specifications

Tip Size 521
Fan Width Approx. 10 inches (at 12" spray distance)
Orifice Size 0.021 inch
Spray Type Airless Spray Application
Guard Compatibility RAC IV & RAC V Systems

Recommended Applications

  • Ultra-heavy latex paints
  • Thick elastomeric coatings
  • Industrial and protective coatings
  • High-build primers and sealers
  • Exterior commercial coatings

Frequently Asked Questions

The first digit (5) represents half the fan width, creating a 10-inch spray at 12 inches from the surface. The last two digits (21) indicate a 0.021-inch orifice, ideal for ultra-heavy coatings.

The Graco 90-521 Flat Universal Tip is best suited for ultra-heavy latex paints, thick elastomeric coatings, industrial coatings, high-build primers, and commercial exterior coatings.

Yes, this spray tip is fully compatible with both RAC IV and RAC V guard systems.

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