Chemical resistant plastic parts
Chemical resistant plastic parts for pumps, valves, seals and wet process equipment.
Chemical-resistant plastic parts must be selected around media, temperature, pressure, creep, wear and geometry. Great Plastics reviews drawings, samples and operating conditions before pump, valve, seal or wet-process parts are quoted.

Short answer
Chemical compatibility is only the first gate for chemical resistant plastic parts.
The quote also needs load, pressure, sliding contact, seal stress, tolerance, surface finish and cleaning conditions. PTFE, PVDF, PEEK, PPS, PP, PE and UHMW-PE may all fit different chemical part risks.
Application fit
Map the application to material behavior and quote inputs.
| Application | Material direction | RFQ note |
|---|---|---|
| Pump wear rings | PEEK, PPS, PTFE-filled or UHMW-PE | Send media, temperature, shaft speed and clearance needs. |
| Valve seats and seals | PTFE, filled PTFE, PEEK or PPS | Clarify pressure, chemical exposure, creep and sealing surface. |
| Manifolds and wet fixtures | PVDF, PP, PE, PEEK or PPS | State media, cleaning, hole pattern and inspection needs. |
| Replacement samples | Machined stock shapes | Send sample photos, worn areas, dimensions and operating history. |
Review points
Resolve the operating risks before selecting the route.
Media details
Chemical name, concentration and temperature must be stated.
Seal load
Creep and compression can decide whether a material works.
Abrasive wear
Slurries and particles change the material shortlist.
Stress cracking
Geometry, fasteners and chemical exposure should be reviewed together.
Inspection
Flatness, bores and sealing faces need clear acceptance points.
RFQ checklist
Send the details that let the quote reflect the real application.
- Drawing, CAD file or sample photo
- Material target or operating-performance requirement
- Temperature, chemicals, load, wear, electrical or cleanliness conditions
- Critical dimensions, finish, inspection and documentation needs
- Quantity, project stage, packaging needs and repeat-order expectations

FAQ