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SYSTEM 20 UP2333 National Rule Slow Hardener, 1 L Tin, Clear - U-POL

Part #: 2333

The U-POL SYSTEM 20 UP2333 National Rule Slow Hardener is a professional-grade 2K hardener specifically engineered for use with U-POL's range of primers, clears, and solid colors. Designed for demanding automotive and industrial applications, this hardener provides an extended working window, making it ideal for large areas and complete vehicle overalls. Its formulation ensures consistent performance, particularly in elevated temperature conditions, to facilitate a high-quality finish.

Key Features

  • Optimized Compatibility: Specifically formulated to integrate seamlessly with U-POL's 2K primers, clear coats, and solid color systems.
  • Extended Working Time: Features a slow hardening rate, allowing professional technicians ample time for application across large surfaces and complex projects.
  • High Temperature Performance: Engineered to maintain consistent cure characteristics and prevent premature flash-off, even in warmer workshop environments.
  • Versatile Application: Suitable for full vehicle repaints (overalls), large panel repairs, and significant industrial equipment finishing.
  • National Rule Compliant: Meets current National Rule regulations for solvent emissions.
  • Clear Formulation: Delivers a clear finish that does not alter the color or clarity of the mixed product.

Applications

This slow hardener is an essential component for professional automotive body shops and industrial paint facilities. It is particularly well-suited for technicians undertaking comprehensive vehicle repaints, such as complete car or truck overalls, where a longer open time is critical for achieving a uniform and defect-free finish. Its performance in elevated temperatures also makes it a reliable choice for shops operating in warmer climates or without stringent climate control, ensuring optimal curing and durability for various substrates.

Specifications

  • Manufacturer: U-POL
  • Model Number: 2333
  • Product Name: SYSTEM 20 UP2333 National Rule Slow Hardener
  • Volume: 1 L Tin
  • Color: Clear
We have 610 in stock
List: $63.01 Save: $23.31

$39.70

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  • Model: 462546
  • Shipping Weight: 2.51lbs
  • UPC: 501079610323
  • Manufacturers Part #: 2333
  • Manufactured by: U-POL
  • Also Known As: UPO2333

This product was added to our catalog on Saturday 13 June, 2026.

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