Cromar PRO GRP Hardener is a Methyl Ethyl Ketone peroxide in phlegmatizer for the curing of unsaturated polyester resins at ambient temperature in combination with colbalt accelerators. Part of the Cromar PRO GRP system. Cromar PRO GRP system is cold applied on site, giving it a seamless and flexible weatherproof finish that resists water, heat and frost. The resulting surface gives a strong architectural finish that looks very impressive. If maintained properly it will last as long as the building stands.

Features:

• Cromar PRO GRP Hardener is a general-purpose MEKP.
• It provides consistent room temperature curing for unsaturated polyester resins and gelcoats.
• The product is known for its remarkable purity and reliability.
• It is suitable for hand lay-up, spray-up, RTM, continuous laminating, centrifugal casting, filament winding, polymer concrete, and vacuum infusion.
• Typically, 1-4% of Cromar PRO GRP Hardener is added to pre-accelerated Polylite Polyester resin.
• For Cromar PRO GRP Gelcoat/Topcoat, 1-4% hardener is used, depending on temperature.

Technical data:

• Brand - Cromar
• Range - Pro GRP
• Product Type - Hardener
• Size - 5ltr
• Appearance - Liquid
• Colour - Clear
• Viscosity at 23°C - 19-22 mPa s (cP)
• Ph - 4 -7
• SADT - 65°C

Please note:

• Wear safety glasses or goggles and chemical resistant gloves.
• Keep away from heat, flames and sparks.
• Avoid breathing vapours.
• Never add peroxides directly to promoters or vice-versa, violent decomposition can occur.
• Prevent contamination such as contact with dust, over-spray, wood and combustible material.
• Never allow contact with metal of any type except 304 or 316 stainless steel or equivalent.