ISO & ASTM certified resin · Engineering & commodity resins · Warehoused in the U.S. & Canada
HomeMaterials › Polysulfone / PPSU
Plastic Resin Supplier

Polysulfone & PPSU supplier — built for steam cycles

The hydrolysis champions — PSU and PPSU shrug off hot water, steam and repeated sterilization cycles that destroy other clear engineering plastics.

Get a quote on polysulfone

About Polysulfone / PPSU

Polysulfone (PSU) and polyphenylsulfone (PPSU) hold strength and clarity through thousands of steam cycles, making them the materials of record for medical sterilization cases (non-implant), plumbing manifolds, and food-service hot-water service. PPSU adds an impact and chemical-resistance step over PSU.

Grades we source

  • PSU transparent grades
  • PPSU (highest toughness)
  • Glass-filled PSU
  • Plumbing / NSF-relevant grades
  • Medical non-implant grades

Common applications

  • Sterilization trays and cases
  • Hot-water plumbing manifolds and fittings
  • Food-service and dairy equipment
  • Aircraft interior parts
  • Battery and electrical components

Typical properties

Impact strengthPSU: moderate · PPSU: excellent
Heat (HDT)~170-205°C
ClarityTransparent amber
Chemical resistanceOutstanding vs. hot water/steam
Relative costHigh

Property ranges are general guidance and vary by grade and supplier; our team confirms the exact spec and certification for your application.

Related materials: PEEK / PEK · Polyetherimide (PEI) · Polyarylate · Fluoropolymers · all materials

Tell us your resin problem

Describe what you're sourcing or what's going wrong — a polymer chemist reviews it personally and replies fast with real options, not a canned quote.

No obligation. Single gaylords welcome — no order too small. We start on it right away and reply fast.

Need polysulfone priced this week?

Send your grade and volume — we start on it right away and reply fast.

Request a Quote
Call UsGet a Quote