Corrosion Resistant Plastic Materials are typically broken into three groups:
Polyolefins include polyethylene and polypropylene (HDPE, LDPE, UHMW, PP). These products are recognized for their light weight and comparatively low cost. Polyethylene and polypropylene are available in various Because of their excellent resistance to solvents, are not chemically bondable. However, when bonding is required, they can be bonded by thermal wielding with low cost hot air welding equipment.
Polyvinyl chlorides include PVC and CPVC. This group possesses similar outstanding chemical resistance properties as the polyolefin group but is 35% to 40% heavier and structurally more rigid. CPVC, chlorinated polyvinyl chloride, offers higher temperature resistance than PVC. Both materials are chemically and thermally bondable. PVC & CPVC offer excellent options whenever chemical resistance, ease of fabrication, and relative low cost are required.
Fluoropolymers (PTFE, FEP, PFA, PVDF, PCTFE, ECTFE, ETFE, etc) offer superior chemical and heat resistance, but are typically softer than other materials, and are more difficult to fabricate into tanks and vessels. Due to their higher operating temperatures and UL approvals, these materials are the solution to the most demanding applications and used within the most critical environments.