DESCRIPTION

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.

APPLICATION

Cromar PRO GRP Hardener is a general purpose MEKP and gives consistent room temperature curing of unsaturated polyester resins and gelcoat/topcoats. A reliable product of remarkable purity, Cromar PRO GRP Hardener assures quality in almost every system. Suitable applications are hand lay-up, spray-up, RTM, continuous laminating, centrifugal casting, filament winding, polymer concrete and vacuum infusion.

Using a standard type of pre-accelerated Polylite Polyester resin 1-4% Cromar PRO GRP Hardener is normally added and for Cromar PRO GRP Gelcoat/Topcoat 1-4%(Subject to temperature)

Gel time and rate of curing are specified in the technical data sheet for the relevant Polylite Polyester resin and Cromar PRO GRP Gelcoats/topcoats.

STORAGE

• Storage at 25°C or below is recommended. Storage below 20°C is recommended for maximum shelf life.
• Store in original containers away from flammables and all sources of heat, sparks or flames; out of direct sunlight and away from promoters, accelerators, reducing agents and strong acids or bases.
• Leaking containers – Remove and isolate in safe area. Re-package or dispose (see later section) immediately.
• Never store in refrigerators containing food and/or beverages.