BlazeMaster® CPVC offers a commercially available CPVC fitting compound with a pressure rating as listed by the Plastics Pipe Institute (PPI). The listing represents PPI's recommended hydrostatic design basis (HDB) rating for thermoplastic piping materials or pipe. Fittings made from BlazeMaster's CPVC compound demonstrated the ability to better withstand long-term, high-temperature hydrostatic pressure when compared to generic CPVC materials. When compared under the same conditions, BlazeMaster's CPVC fittings lasted four times longer than those molded with other CPVC compounds when subjected to constant pressure tests at 551 psi at 180