Shop now for GRP MEKP Catalyst. Oz General Store - Australia's online store! Sizes: 25ml | 100ml | 500ml CAUTIOUS - HAZARDOUS CHEMICAL (Please test mixing ratio prior) GRP MEKP Catalyst is a high-quality hardener specifically formulated for use with polyester resins, gelcoats, fibreglass fillers, and laminating systems. Available in 20ml, 100ml, and 500ml sizes, this professional-grade catalyst ensures reliable curing performance and strong, durable finished results across a wide range of fibreglass and composite applications. Designed for marine, automotive, industrial, and DIY use, MEKP (Methyl Ethyl Ketone Peroxide) catalyst is essential for activating polyester-based products and achieving proper hardening and curing. Suitable for use with fibreglass repairs, laminating resins, gelcoats, and body fillers, this catalyst provides fast and consistent curing when mixed at the recommended ratios. Key Features: Available in 20ml, 100ml, and 500ml sizes Professional-grade MEKP catalyst/hardener Suitable for polyester resins and gelcoats Reliable and consistent curing performance Ideal for fibreglass laminating and repair work Compatible with polyester fillers and composite systems Fast curing when used at the correct mix ratios Suitable for marine, automotive, and industrial applications Easy measuring and mixing for accurate application Essential for fibreglass fabrication and repairs Specifications: Product Type: MEKP Catalyst / Hardener Chemical Type: Methyl Ethyl Ketone Peroxide Available Sizes: 20ml, 100ml, 500ml Suitable Products: Polyester resins Gelcoats Fibreglass fillers Laminating systems Application: Fibreglass repairs, laminating, curing polyester products Usage: Add according to manufacturer-recommended mixing ratios Applications:Perfect for a wide range of professional and DIY fibreglass applications, including: Boat and marine repairs Fibreglass laminating Gelcoat curing Automotive body repairs Caravan and RV repairs Surfboard and composite repairs Industrial fibreglass fabrication GRP MEKP Catalyst is an essential component for achieving strong, reliable curing performance in polyester-based fibreglass systems. Always follow recommended mixing ratios and safety guidelines when handling MEKP products. Suitable protective equipment should be worn during use and storage. Please note: The images shown are for illustrative purposes only. Products and their specifications may be subject to change without prior notice. Please note that sizes are measured but used only as a guideline, not as precise measurements.