| Trigonox 42PR is a promoted tert-butyl peroxy ester for the cure of unsaturated polyester and vinylester resins. Trigonox 42PR can be used which is an aliphatic perester, alternatively Trigonox 93 is based on an aromatic perester. CAS number: 13122-18-4 EINECS/ELINCS No: 236-050-7 Applications: Trigonox 42PR is a peroxide formulation based on tert-butylperoxy-3,5,5-trimethylhexanoate.Trigonox 42PR has been developed for the cure of unsaturated polyester resins in combination with a cobalt accelerator in the temperature range of 60°C and higher. Trigonox 42PR plus a cobalt accelerator can effectively be used as a match for Trigonox 21 in those areas where the use of Trigonox 21 is restricted by its official transport and storage temperature of max. +20°C. Application area for the cure system Trigonox 42PR plus a cobalt accelerator (e.g. Accelerator NL-53N, 10% cobalt) can be e.g.: artificial marble, polymer concrete, filament winding, air drying lacquers. The combination Trigonox 42PR plus a cobalt accelerator and possibly an amine accelerator like Accelerator NL-63-100 (N,N-Dimethylaniline) is also very suitable for the ambient temperature cure of vinylester resins. Trigonox 42PR gives in these resins a much faster cure than the commonly applied peroxides Butanox LPT and Trigonox 239. Information provided by Nouryon |
