U-Pol Hardener (UPOL CAT/5) is a 50ml red paste catalyst essential for curing U-Pol Plastikit Resin and other polyester fillers, ensuring optimal strength, durability, and a professional finish.


£8.28 inc. VAT
£6.90 ex. VAT

1 in stock

Additional Information

Ensure a Perfect Cure with U-Pol Hardener For Plastikit Resin - 50ml (UPOL CAT/5)

Achieve a reliable and durable cure for your polyester resin applications with U-Pol Hardener (UPOL CAT/5). This essential 50ml tube of red paste hardener is specifically formulated to work seamlessly with U-Pol Plastikit Resin and other compatible polyester body fillers and resins. Acting as the catalyst, it initiates the chemical reaction necessary for the resin to cure, transforming it from a liquid to a solid, sandable, and structurally sound material. Proper mixing of this hardener ensures optimal adhesion, strength, and workability of your repair, making it indispensable for automotive bodywork, marine repairs, and general GRP fabrication.

Key Features and Benefits:

  • Essential Catalyst: Specially formulated hardener to ensure the correct cure of U-Pol Plastikit Resin and similar polyester products.
  • Optimal Cure: Guarantees proper hardening, leading to maximum strength, durability, and sandability of the cured material.
  • Consistent Performance: Provides reliable and predictable curing results when mixed according to instructions.
  • Easy to Mix: Red paste formulation ensures easy visual confirmation of thorough mixing within the resin or filler.
  • Convenient 50ml Tube: Provides ample hardener for multiple applications or larger resin quantities.
  • Professional Grade Quality: A trusted U-Pol component, vital for achieving professional-level repairs in automotive and composite applications.

Application Process Summary:

  • Always refer to the specific instructions provided with your U-Pol Plastikit Resin or compatible polyester filler for precise mixing ratios.
  • Typically, a small bead or proportion of hardener is mixed thoroughly with the resin until a uniform colour is achieved, ensuring no streaks of red remain.
  • Work quickly as the pot life begins immediately upon mixing.
  • Ensure the surface is clean, dry, and prepared according to the resin/filler instructions before application.

Trust U-Pol Hardener For Plastikit Resin (UPOL CAT/5) to deliver the critical cure needed for strong, lasting, and professional-grade repairs.