PPSU Powder (Polyphenylsulfone)
PPSU powder is supplied in free-flowing form for coating and spray applications requiring repeated sterilization. It offers excellent hydrolytic stability and toughness across a very broad service temperature range, from cryogenic to elevated heat. Typical particle size is a fine powder cut for coating use; grades and particle size are confirmed at time of quotation.
Tg ~220°CMelting / Softening Point
Fine PowderParticle Size Range
Custom Made-to-OrderGrade, Size & Quantity
WorldwideExport Shipping
PPSU Powder — Grades & Specifications
Polyphenylsulfone (PPSU) powder is supplied across a range of grades, particle sizes and morphologies. The options below are typical; specify your target values in the request form and we will confirm availability, lead time and pricing.
| Material | Polyphenylsulfone (PPSU) |
|---|---|
| Category | High-Performance Engineering Plastic Powders |
| CAS number | 25608-64-4 |
| Melting / softening point | Amorphous polymer, no true melting point; Tg ~220°C |
| Particle size | Fine powder for coating and spray applications; cut confirmed per grade |
| Morphology | Fine coating/spray powder |
| Appearance | Transparent to tan/amber powder |
| Max. continuous service temperature | Approx. 160–180°C continuous |
| Typical applications | Medical Device Sterilization Trays, Surgical Instrument Handles, Aerospace Interior Components, Plumbing Fittings & Valves |
Applications by Industry
Medical Device Sterilization TraysPPSU powder coatings withstand thousands of steam autoclave sterilization cycles.
Surgical Instrument HandlesPPSU powder is molded into reusable surgical instrument components requiring high toughness.
Aerospace Interior ComponentsPPSU powder coatings meet aviation flame and smoke-toxicity requirements for cabin parts.
Plumbing Fittings & ValvesPPSU powder coats hot-water plumbing fittings requiring long-term hydrolysis resistance.
Infant Feeding BottlesPPSU powder is molded into reusable feeding bottles tolerant of repeated hot sterilization.
Electronic Component CoatingPPSU powder coatings insulate connectors exposed to elevated operating temperatures.
Particle Size & Mesh Conversion
Reference for converting between US mesh and microns/millimetres. Figures are nominal sieve openings and may vary slightly by standard.
| Mesh (US) | Micron (µm) | mm | Inch | Remarks |
|---|---|---|---|---|
| 3 | 6730 | 6.730 | 0.2650 | |
| 4 | 4760 | 4.760 | 0.1870 | |
| 5 | 4000 | 4.000 | 0.1570 | |
| 6 | 3360 | 3.360 | 0.1320 | |
| 7 | 2830 | 2.830 | 0.1110 | |
| 8 | 2380 | 2.380 | 0.0937 | |
| 10 | 2000 | 2.000 | 0.0787 | |
| 12 | 1680 | 1.680 | 0.0661 | |
| 14 | 1410 | 1.410 | 0.0555 | |
| 16 | 1190 | 1.190 | 0.0469 | |
| 18 | 1000 | 1.000 | 0.0394 | |
| 20 | 841 | 0.841 | 0.0331 | |
| 25 | 707 | 0.707 | 0.0278 | |
| 30 | 595 | 0.595 | 0.0234 | |
| 35 | 500 | 0.500 | 0.0197 | |
| 40 | 420 | 0.420 | 0.0165 | |
| 45 | 354 | 0.354 | 0.0138 | |
| 50 | 297 | 0.297 | 0.0117 | |
| 60 | 250 | 0.250 | 0.0098 | |
| 70 | 210 | 0.210 | 0.0083 | |
| 80 | 177 | 0.177 | 0.0070 | |
| 100 | 149 | 0.149 | 0.0059 | |
| 120 | 125 | 0.125 | 0.0049 | |
| 140 | 105 | 0.105 | 0.0041 | |
| — | 100 | 0.100 | 0.0039 | Sand |
| 170 | 88 | 0.088 | 0.0035 | |
| 200 | 74 | 0.074 | 0.0029 | |
| — | 70 | 0.070 | 0.0027 | |
| 230 | 63 | 0.063 | 0.0024 | Human hair |
| — | 55 | 0.055 | 0.00217 | |
| 270 | 53 | 0.053 | 0.0021 | |
| — | 50 | 0.050 | 0.00197 | |
| 325 | 44 | 0.044 | 0.0017 | |
| — | 40 | 0.040 | 0.00157 | |
| 400 | 37 | 0.037 | 0.0015 | |
| 550 | 25 | 0.025 | 0.00099 | |
| 625 | 20 | 0.020 | 0.00079 | |
| 1200 | 12 | 0.012 | 0.0005 | |
| 1250 | 10 | 0.010 | 0.000394 | |
| — | 7 | 0.007 | 0.000276 | |
| 2500 | 5 | 0.005 | 0.000197 | |
| 4800 | 3 | 0.003 | 0.000118 | |
| 5000 | 2.5 | 0.0025 | 0.000099 | Bacteria (approx.) |
| 12000 | 1 | 0.001 | 0.0000394 |
Information Required for Quotation
- Grade or type
- Particle size (micron or mesh)
- Morphology / form (spherical, irregular, granular, etc.)
- Quantity
- Application environment
- Required delivery country
Lead time depends on grade, particle size, quantity and processing requirements. Export availability can be reviewed based on destination country and material type. A Certificate of Analysis can be provided on request.
Request a Quote or Custom Order
Tell us your grade, particle size and quantity. We typically reply within one business day.
Frequently Asked Questions
What grades and particle sizes of PPSU powder are available?
PPSU (Polyphenylsulfone) powder is supplied with particle size and grade as follows: Fine powder for coating and spray applications; cut confirmed per grade Fine coating/spray powder. Other grades can be reviewed on request depending on your application and quantity.
What particle sizes can you supply?
Fine powder for coating and spray applications; cut confirmed per grade Mesh-based requirements are also accepted; a mesh-to-micron conversion reference is provided on the page.
Can PPSU powder be made to custom specifications?
Yes. PPSU powder is produced to order — grade, particle size, morphology and packaging can be customized to your specification. Select “Custom Order” in the request form and provide your target values.
What is the minimum order quantity (MOQ)?
Order quantity is flexible and small quantities and prototype requests are welcome. Please state your required quantity in the form for an accurate quotation.
Can you export and ship PPSU powder internationally?
Yes, export inquiries are welcome. Availability and shipping are reviewed based on destination country, grade and quantity.
Do you provide a Certificate of Analysis (COA) or technical data?
A Certificate of Analysis and technical data can be provided on request for supplied lots.
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Request a Quote for PPSU Powder
Send us your grade, particle size, quantity and application. We will review availability, quotation and lead time. Small quantities, prototypes and custom made-to-order specifications are welcome.