Graco CST421 0.021 In Orifice RS Airless Spray Gun Tip with 8 in Pattern Width
The Graco CST421 RS Airless Spray Gun Tip is designed for precise application of fiberglass resins and gelcoat, delivering consistent performance in demanding composite spraying tasks.
- Orifice Size: 0.021 inch
- Fan Width: 8-inch spray pattern
- Tip Type: RS (Reverse Spray)
- Application: Fiberglass, resin, gelcoat
- Compatibility: RS / FRP spray systems only
Compatible Machines
The Graco CST421 0.021 In Orifice RS Airless Spray Gun Tip with 8 in Pattern Width is specifically designed for use with RS (Resin Spray) systems used in fiberglass and composite applications.
- Graco RS Resin Spray Guns
- Graco FRP (Fiberglass Reinforced Plastic) Spray Systems
- Gelcoat Spray Systems with RS Tip Compatibility
- Fiberglass Chop Spray Equipment using RS interchangeable tips
Product Description
The Graco CST421 is a high-performance RS airless spray gun tip engineered for precise application of fiberglass resins, gelcoat, and other composite materials. With a 0.021-inch orifice and an 8-inch fan pattern, it delivers a consistent and controlled spray, making it ideal for medium to heavy material applications.
Built for durability and efficiency, this tip allows for quick replacement, reducing downtime during demanding industrial operations. It is not intended for standard paint sprayers and is exclusively compatible with RS system spray equipment.
Key Features
| Orifice Size | 0.021 inch |
| Fan Pattern Width | 8 inches |
| Tip Type | RS (Reverse Spray) |
| Application | Fiberglass, Resin, Gelcoat |
| Compatibility | RS / FRP Spray Systems Only |
How Tip Size Works
In the 421 tip designation, the first digit (4) represents the fan width (approximately 8 inches), while the last two digits (21) indicate the orifice size (0.021 inches). This combination ensures balanced coverage and efficient material flow.
Frequently Asked Questions
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