Accelerator 55028

Accelerator 55028 by Nouryon is cobalt accelerator in aliphatic solvent mixture for curing UP resins at ambient temperatures. The curing of unsaturated polyester resins at ambient temperatures can in general not be performed by an organic peroxide alone. The radical formation, which is necessary to start the polymerization reaction, is at ambient temperatures with most generally applied organic peroxides too slow. For ketone peroxides like methyl ethyl ketone peroxides, cyclohexanone peroxides and acetylacetone peroxide a cobalt accelerator must be used. Recommended when using aluminum trihydrate (ATH) fillers. The shelf life of Accelerator 55028 is 6 months.