Accelerator NL-53

Accelerator NL-53 by Nouryon is a solution of 10% cobalt in solvent mixture used as an accelerator for curing UP resins at ambient temperatures. It is used in continuous laminating, resin transfer molding, filament winding, vinylesters, hand lay-up and spray up applications. The radical formation, which is necessary to start the polymerization reaction, is at ambient temperatures with most generally applied organic peroxides too slow. To speed up the radical formation in a controllable way organic peroxides must therefore be used in combination with accelerator. For ketone peroxides like methyl ethyl ketone peroxides, cyclohexanone peroxides and acetylacetone peroxide a cobalt accelerator must be used. The shelf life of the product is 9 months. Accelerator NL-53 is listed in TSCA.