Paryls ® Polyphenylsulfone offers the best performance of all the sulfone polymers with a Tg of 220C. PPSU’s Impact performance is comparable to polycarbonate, but chemical resistance is superior to Polysulfone (PSU). PPSU is inherently flame retardant.
Paryls ® Polysulfone is a high-strength , high temperature plastic that has practical toughness. It maintains excellent mechanical properties when exposed to steam and offers superior heat resistance to Polycarbonate. It does not offer the impact strength of PPSU.