Controlled Spray and NARA

Controlled spray and non-atomized resin application (NARA) are best practices that apply to open molding processes, including gel coat application. These practices were developed by ACMA to reduce emissions...

Mixing Organic Peroxides into Composite Materials

The mixing of organic peroxides (OPs) into unsaturated polyester resin (UPR) can make a critical difference between a good part and an increasing scrap rate. The key is in the order of mixing and reducing the...