The GRACO CST421 is a composite spray tip designed for use with GRACO RS chop guns in fiberglass reinforced plastic (FRP) applications. It is engineered to deliver precise spray patterns for polyester resin and gel-coat materials, ensuring efficient and consistent application in composite manufacturing.

Key Features:

• Composite Spray Tip
• CST421
• GRACO RS Chop Guns, FRP systems, polyester resin, gel-coat
• Engineered for durability and long service life
• Designed for easy maintenance and quick replacement
• Optimized for consistent spray pattern and ratio stability
• Industry-proven GRACO components

Applications:
Used in fiberglass reinforced plastic (FRP) manufacturing for spraying polyester resin and gel-coat materials, suitable for both internal and external mix chop gun systems.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, safety, and longevity of the equipment. Non-genuine parts may compromise spray quality and system reliability.
• Ensure the system is depressurized before replacing the tip
• Follow GRACO’s recommended maintenance schedule for spray tips
• Inspect tip for wear or damage regularly
• Use only compatible GRACO RS chop guns and FRP systems
• Clean the tip thoroughly after each use to prevent clogging
• Store tips in a clean, dry environment
• Replace tips as recommended by GRACO or when spray quality degrades