PVC (Polyvinyl Chloride) low cost, general engineering grade with excellent chemical resistance and flame retardant. Being rigid and easy to fabricate, this material is often used for fabricated tanks, vessels, pipes and fittings.
Available in both homopolymer and copolymer. FDA approved with high impact resistance and excellent chemical resistance to a wide range of acids, alkalis and solvents. Comopolymer grade contains a polyethylene additive which results in the material being slightly softer than the pure homopolymer grade. As a result, homopolyer material is commonly used in the cutting board industry. Copolymer material offers slightly better sliding properties.
Both PVC and polypropylene are easy to weld, fold and fabricate.