BPO
Benzoyl peroxide is a 75% active grade of BPO with remainder water added for added safety, forming a water-wet powder. Traditional uses like general purpose, high-impact, or expandable polystrenes depend on benzoyl peroxide for bulk polymerizations. Room temperature curing operations such as thermoset or acrylic composites can be achieved using benzoyl peroxide together with heavy metal or amine accelerators.