Liquid Catalyst / Hardener - 1kg
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Professional Building SuppliesCromar Liquid Catalyst/ Hardener - 1Kg
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£17.27
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Product Information
Full details
The ProGRP Liquid Catalyst is designed for professional roofers and experienced DIYers who need a reliable hardening agent to cure GRP roofing resins and topcoats efficiently. It provides the essential chemical reaction required for a durable, weather-resistant roofing membrane, though users must strictly adhere to specific mixing ratios to avoid compromising the structural integrity of the roof.
All features
| Model Part Number | HARD1 |
|---|---|
| Brand | Cromar |
Extended Product Information
FAQs
How much hardener should I add to my resin?
The amount depends on the temperature and the volume of resin. Consult the ProGRP mixing chart provided with your resin kit to determine the exact percentage.
Can I use this with other brands of fiberglass resin?
It is strongly recommended to use this only with the ProGRP system to ensure chemical compatibility and proper curing.
What happens if I accidentally spill the catalyst?
Neutralize the area according to your safety data sheet (SDS) guidelines and contact a professional disposal service if it is a large spill.
Does the hardener expire?
Yes, it has a limited shelf life. Check the manufacturing date on the bottle and ensure it is kept in a cool, dark environment to extend its usability.
Is it safe to handle without gloves?
No, you must always wear chemical-resistant gloves and eye protection when handling liquid catalyst as it is a skin and eye irritant.
Troubleshooting
Resin is not hardening after several hours
Check if the ambient temperature is too low. In cold conditions, the reaction slows significantly, or you may have under-catalyzed the mixture.
Mixture is bubbling or getting hot too fast
You have likely added too much catalyst. Stop use immediately, move the container to a safe, ventilated area, and do not apply to the roof.
Pros and Cons
Pros
- Reliable curing performance for GRP systems
- Generous 1kg size supports large-scale projects
- Essential for achieving long-lasting, durable waterproofing
- Professional-grade consistency
Cons
- Requires precise mixing ratios for safety
- Sensitive to environmental temperatures
- Short shelf-life once opened
- Must be handled with professional safety equipment
Setup, Compatibility & Care
To ensure optimal performance, keep the container tightly sealed and stored in a cool, dry, and well-ventilated area away from direct sunlight. The catalyst should never be stored in the same vicinity as the resins themselves to prevent accidental contamination. Compatibility is restricted to the ProGRP product line; do not attempt to use this catalyst with non-specified resins as it may lead to chemical instability. When setting up, always wear appropriate PPE, including gloves and goggles, as the product is highly reactive. Dispose of containers according to local hazardous waste regulations.
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