Description
Raptor U-POL Standard Hardener 500ml Tin Clear is a professional-grade isocyanate hardener from the System 20 range. Designed for compatible 2K acrylic automotive coatings, it supports the curing process and is suitable for larger repair areas in professional refinishing environments.
What Raptor U-Pol Standard Hardener Clear is for
Raptor U-POL Standard Hardener is designed for use with compatible U-POL System 20 HS and SR clearcoats, UHS primers and HS solid-colour coatings. It helps these two-component coating systems cure and develop their intended finish.
This hardener is designed for use with compatible U-POL System 20 HS and SR clearcoats, UHS primers and HS solid-colour coatings. It helps these two-component coating systems cure and develop their intended finish.

How to apply
- For professional automotive refinishing use only.
- Use only with coating systems specifically approved for this hardener.
- Follow the coating manufacturer’s specified application and curing requirements.
- Isocyanate hardeners require appropriate professional controls, protective equipment and ventilation.
- Keep the container securely closed and store it according to the manufacturer’s safety requirements.

Raptor U-Pol Standard Hardener Clear: key facts
- Standard Hardener, 500ml tin, clear
- Pot life: 4–6 hours
- Flash-off between coats: 5–10 minutes
- Tack-free time: 60 minutes
- Through-dry time: 12–14 hours
- Through-dry time with force drying: 30 minutes
- Mixing ratio: Specified for each compatible coating
- Coverage: Not applicable as a standalone product
- Intended use: Professional automotive refinishing only
- Main function: Supports curing of compatible 2K acrylic coatings
- Hardener speed: Standard

Which colour / size to choose
Choose Raptor U-POL Standard Hardener 500ml Tin Clear for professional refinishing work involving compatible System 20 coatings. The 500ml tin is a practical pack size for workshop requirements, provided the selected coating specifies this hardener.

FAQ
What is Raptor U-POL Standard Hardener used for?
It is used as the hardener component in compatible two-component automotive coatings.
Which products is it compatible with?
Specified U-POL System 20 HS and SR clearcoats, UHS primers and HS solid colours.
Is this a fast hardener?
No. It is the standard-speed hardener in the System 20 range.
What is the mixing ratio?
The required ratio depends on the compatible coating system.
How long does it take to cure?
Curing time depends on the coating used and the application conditions; there is no single standalone curing time for the hardener.
Is it suitable for consumer use?
It is intended for professional use only because isocyanate hardeners present significant health hazards.






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