Material focus
Polysulfone selection, applications, and sibling resin routing on this page.
Polysulfone
Polysulfone Injection Molding: Properties, Applications and Design Guide
Polysulfone (PSU) is specified for injection molded fluid parts that need transparency, heat resistance, and hydrolytic stability.
Polysulfone
When to specify Polysulfone
How procurement and design teams use Polysulfone on injection molded programs.
Polysulfone (PSU) is specified for injection molded fluid parts that need transparency, heat resistance, and hydrolytic stability. Buyers specify the commercial grade on the PO when known, or describe service temperature, chemical exposure, and mechanical targets so engineering can suggest a candidate resin. Quote with CAD and resin notes on the instant quote platform. NetProto builds one hardened steel tool with no minimum order quantity for production parts.
Key traits
Why buyers specify Polysulfone
Engineering and sourcing highlights. No NetProto processing numbers on this page.
Sourcing
Grade and compliance context travels with CAD on the instant quote platform.
Program fit
First articles through production on one steel tool, no MOQ.
NetProto platform
Instant CAD quoting and DFM feedback before tooling release.
Tooling lead time
10 business days on qualified programs, depending on part size and complexity.
Common grades
Common PSU (Polysulfone) grades by use case
Pick one of these on the instant quote, or name any other commercial grade in the RFQ notes. Transparency and steam performance vary by grade. Confirm both on the supplier TDS before specifying.
| Use case | Example grade | Typical parts |
|---|---|---|
| General purpose | Ultrason S3010 | Laboratory accessories and household high heat parts |
| General purpose | Udel P-1700 | Steam-resistant housings and fluid handling components |
| 20% glass fiber | Udel GF-120 | Metal replacement structural and engineering parts |
Applications
Where this resin shows up on BOMs
Typical molded parts and what to specify on the purchase order.
| Application | Why this resin | Specify on the PO |
|---|---|---|
| Typical molded parts | Transparent high-heat sulfone for fluid parts. | Polysulfone grade or family name on PO |
| Secondary features | Confirm fillers and color on datasheet | Compliance filters as requirements |
| Validation builds | First articles on production steel tool | Volume notes for cavity planning |
| Autoclave trays and dental handles | Transparency and steam stability are grade-specific | Name steam exposure and extractables limits on the PO |
RFQ
Ready to quote? Have this information ready
Prepare these details, then upload CAD on the instant quote platform.
Hydrolysis stability requirement (hot water or steam)
Steam sterilization cycles your program expects
Chemical resistance list (cleaners, disinfectants)
Transparency requirement
Impact and toughness requirement
Commercial grade, or the use case to match (20% GF, transparent vs opaque, hot water or steam exposure)
Expected annual volume (helps cavity and tool planning)
Next step
Upload CAD for an instant quote
Grade not finalized? Note Polysulfone on the RFQ and attach environment notes.
Compare and explore
Related guides
Pairwise comparisons and sibling material pages.
PPSU
Tougher sulfone for repeated sterilization.
PPSU
PEI (Ultem)
Higher heat amber resin.
PEI (Ultem)
PPS
Chemical-resistant and stiff in heat.
PPS
PPO (Noryl)
Opaque housings, not a clear sulfone.
PPO (Noryl)
Polycarbonate
Lower cost clear resin.
Polycarbonate
Materials library
Browse all resin guides.
Materials library
Reading a material datasheet
What the TDS (Technical Data Sheet) values mean for a molded part.
Reading a material datasheet
Specify resin grade on an RFQ
How to write grade, color, and fillers so the quote matches the part.
Specify resin grade on an RFQFAQ
Polysulfone injection molding FAQ
When should I choose Polysulfone?
Choose Polysulfone when the part needs transparency, heat resistance, and hydrolytic stability in fluid service. Match the grade to temperature and chemical exposure on the TDS.
Does this resin require drying?
Follow the supplier TDS for the exact grade. At NetProto, attach the datasheet when moisture-sensitive fillers are used.
What is the minimum order quantity for molded parts at NetProto?
NetProto has no minimum order quantity on molded parts from your production tool. Upload CAD on the instant quote platform to scope tooling and part pricing for your volume.
How do I quote this resin without a final grade selected?
List the resin family on the RFQ, attach environment and compliance notes, and upload CAD. At NetProto, engineers use DFM review to narrow grades before tooling release.
How fast can tooling start for a Polysulfone part?
NetProto builds the hardened steel tool in about 10 business days on qualified programs, depending on part size and complexity. Upload CAD on the instant quote platform to start DFM review.
Next step
Quote Polysulfone parts with your CAD
Upload geometry and list Polysulfone or the target grade on the instant quote platform.