Category: Parison Molds

Parison Molds Individual parison mold blocks are normally fabricated from 1017 HRS or P-20 pre-hard steel for use with polyolefin molding resins. Molds for rigid resins, such as styrenics, nitriles, carbonates, etc.” are usually made of an oil-hardening steel (A-2 or equivalent), rough machined and hardened to RC 40-45. In both cases final polishing is…