Protite 15ml Fibreglass Resin Catalyst Hardener – All Protite Resins | Australia

The Essential Curing Agent for All Protite Resins

No fibreglass or casting resin project can be completed without the right hardener — and the Protite 15ml Resin Catalyst Hardener is purpose-formulated to work seamlessly with the full range of Protite resin products. Whether you’re mid-way through a fibreglass repair or setting up a clear casting and embedding project, this compact hardener is the critical ingredient that kicks off the chemical curing process and transforms liquid resin into a tough, solid finish.

Running low on hardener mid-project — or realising too late that your existing kit is short — can bring a repair or creative project to a grinding halt. The Protite 15ml Catalyst Hardener is available as a standalone product so you can stock up, top up, or simply keep a spare on hand without needing to purchase a full kit. Compact enough to store in a toolbox or craft drawer, it’s a practical addition to any Protite resin user’s supplies.

Key Highlights

• Compatible with All Protite Resins — Specifically formulated for use with the entire Protite resin range, including all fibreglass resins and the Protite Clear Casting and Embedding Resin, giving you reliable, consistent results across multiple product types.
• Initiates the Curing Process — Adding this catalyst hardener to your resin triggers the chemical reaction needed to begin curing, transforming the liquid resin into a hard, durable surface ready for sanding, painting or finishing.
• Fully Cures Within 24 Hours — The hardener delivers a complete cure in approximately 24 hours under normal conditions, providing a predictable and manageable working timeline for repairs and creative projects alike.
• Precision Dropper Bottle — The dropper bottle design allows for accurate, drop-by-drop measurement, making it easy to achieve the correct resin-to-hardener ratio every time — minimising waste and ensuring consistent cure quality.
• Easy to Use — No specialist knowledge or equipment required. Simply measure the recommended amount using the dropper, add it to your resin, mix thoroughly and apply — straightforward enough for first-time users and experienced DIYers alike.
• Compact & Convenient — At just 15ml, this hardener is small enough to store in a toolbox, craft bag or workshop drawer, making it a practical item to keep on hand for fibreglass repairs, casting projects and hobby work whenever you need it.

Perfect For

The Protite 15ml Resin Catalyst Hardener is ideal for existing Protite users who need a hardener top-up without purchasing a full repair kit, as well as hobbyists, crafters and tradespeople working with Protite Clear Casting and Embedding Resin. It suits anyone completing fibreglass repairs on boats, caravans, automotive panels or structural surfaces, and is equally at home in craft and jewellery-making applications where clear casting resin is used. Whether you’re a seasoned professional or a weekend DIYer, having a spare hardener on hand ensures your project never has to stop before it’s finished.

Technical Specifications