Description
The GRACO CST321 is a composite spray tip designed for use with FRP (Fiber-Reinforced Plastic) chop guns, such as the RS series. It is intended to deliver a controlled spray pattern for applying polyester resin and gel-coat in open mold fiberglass applications. The tip is constructed for compatibility with GRACOs RS chop gun systems.
Key Features:
- Composite Spray Tip
- CST321 (321 pattern code)
- GRACO RS Chop Gun, FRP (Fiber-Reinforced Plastic) systems
- Designed for use with GRACO RS chop guns
- Precision spray pattern for resin and gel-coat application
- Part of a range of composite spray tips for various pattern widths
- Easy to replace and maintain
Applications:
Used in open mold fiberglass applications for applying polyester resin and gel-coat with chopped fiberglass reinforcement. Suitable for industrial, marine, automotive, and construction sectors where FRP is utilized.
Installation Notes:
- Using genuine GRACO tips ensures optimal spray performance, equipment longevity, and safety. Non-genuine parts may affect spray quality and system reliability.
- Ensure the system is depressurized before replacing the tip
- Align the tip correctly with the gun body for proper spray pattern
- Regularly inspect and clean the tip to prevent clogging and ensure consistent performance
- Refer to the GRACO RS chop gun manual for specific installation instructions






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