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Cromar Pro GRP Hardener - 1kg & 5kg

£19.03 GBP

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Liquid hardener for curing Pro GRP resin and top coat.

Cromar Pro GRP Hardener is the catalyst used to activate Pro GRP Roofing Resin and Pro GRP Top Coat, allowing them to cure at ambient temperature.

Available in 1kg and 5kg bottles.

System Role ▸

Initiates curing of Pro GRP resin
Activates Pro GRP top coat
Controls working time based on dosage

Correct catalyst levels are essential for proper cure and laminate performance.

Mixing Guidance ▸

Typical addition rate: 1–4% depending on temperature
10–40ml per kg of resin (temperature dependent)
Always mix thoroughly for at least one minute

Higher temperatures require less hardener.
Lower temperatures require more.

Always test first mix and adjust as needed.

Specification ▸

Type: Liquid curing agent
Colour: Clear
Pack Sizes: 1kg / 5kg
Shelf Life: 12 months
For Use With: Cromar Pro GRP Resin & Top Coat

Summary ▸

Cromar Pro GRP Hardener activates and cures Pro GRP resin and top coat. Supplied in 1kg and 5kg bottles, it forms an essential part of the Pro GRP roofing system.

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