MEKP Reduced VOC Formulation

MEKP Reduced VOC Formulation is a specially engineered methyl ethyl ketone peroxide product designed to minimize volatile organic compound (VOC) emissions during composite processing. Traditional MEKP formulations use phthalate-based plasticizers as diluents; this low-VOC version replaces conventional diluents with high-boiling, low-vapor-pressure carriers that comply with increasingly stringent workplace emission standards and environmental regulations in Europe and North America. The active oxygen content is maintained at 33% to ensure equivalent curing performance to standard grades. This product is particularly valuable in enclosed or semi-enclosed production environments where worker exposure to VOCs is a concern, and in facilities pursuing environmental certifications. Gel time and cure profiles are similar to standard MEKP when used with cobalt octoate or naphthenate accelerators at standard dosage levels of 1–2%. The formulation is compatible with all major unsaturated polyester and vinyl ester resin types, including low-styrene and styrene-free formulations. Storage temperature should not exceed 25°C.