

The Graco CST521 RS Spray Tip delivers a consistent 10-inch spray pattern with controlled material flow, ideal for resin and gelcoat applications.
The Graco CST521 0.021 in Orifice RS Airless Spray Gun Tip is specifically engineered for Graco RS spray systems used in fiberglass and resin applications. It is not compatible with standard airless paint sprayers.
The Graco CST521 RS Spray Tip is designed to deliver consistent, high-quality spray patterns for resin and gelcoat applications. Built for durability and precision, it ensures efficient material distribution across surfaces in demanding industrial environments.
| Tip Size | 521 |
|---|---|
| Orifice Size | 0.021 inch |
| Spray Pattern Width | 10 inches (approx. at 12" distance) |
| Application | Resin, Gelcoat, Fiberglass Spraying |
| System Type | RS Airless / FRP Systems |
The spray tip determines both the width of the spray pattern and the amount of material output. The “521” designation means a 10-inch fan width combined with a 0.021-inch orifice, making it ideal for covering large surfaces efficiently while maintaining consistent coating thickness.