High-Performance Polymers for Demanding Applications
Advanced engineering plastics deliver unique combinations of properties unavailable in metallic materials—exceptional chemical resistance, electrical insulation, low friction, biocompatibility, and lightweight performance. From medical device components to semiconductor equipment, precision-ground plastic rod and bar materials enable designs that metals cannot achieve.
Understanding Engineering Plastics
High-Performance Thermoplastics — Materials like PEEK, ULTEM, and Torlon offer exceptional mechanical strength, thermal stability, and chemical resistance at elevated temperatures.
Fluoropolymers — PTFE (Teflon) and Rulon provide the lowest friction coefficients of any solid material, combined with outstanding chemical inertness and wide temperature capability.
Polyimides — Vespel delivers extreme temperature resistance, low outgassing, and dimensional stability in demanding aerospace and semiconductor applications.
Engineering Thermoplastics — Delrin (acetal), Nylon, and similar materials offer excellent machinability, wear resistance, and mechanical properties for general industrial applications.
Key Properties — Chemical resistance, biocompatibility, low friction, electrical insulation, temperature stability, dimensional stability
Industries We Serve
Medical Devices — Surgical instruments, orthopedic implants, diagnostic equipment, and drug delivery systems utilize biocompatible plastics like PEEK and FDA-compliant PTFE that resist sterilization processes and body fluids.
Semiconductor & Electronics — Wafer handling equipment, vacuum chamber components, and insulating parts require the purity and dimensional stability of Vespel and PEEK for plasma etching and CVD environments.
Aerospace & Defense — Bushings, bearings, seals, and structural components benefit from high strength-to-weight ratios and temperature resistance of Torlon, PEEK, and ULTEM.
Food & Beverage Processing — Conveyor components, valve seats, and food contact parts utilize FDA-compliant grades that resist cleaning chemicals and meet regulatory requirements.
Chemical Processing — Pump components, valve parts, and seal faces rely on the chemical inertness of PTFE and PEEK where metals corrode.
Industrial Machinery — Wear strips, bearings, and bushings utilize self-lubricating plastics like Rulon and filled PTFE that reduce maintenance and eliminate lubrication.
Oil & Gas — Downhole seals, wear rings, and backup rings require the temperature stability and chemical resistance of PEEK and filled PTFE.
Material Selection
Centerless Products processes precision plastic rod and bar materials through specialized grinding, polishing, cutting, and blanking operations.
HIGH-PERFORMANCE THERMOPLASTICS
| MATERIAL | DESCRIPTION | KEY PROPERTIES |
| PEEK | Polyetheretherketone | Excellent mechanical strength, chemical resistance, biocompatible, 480°F continuous use |
| PEEK GF | Glass-filled PEEK | Enhanced stiffness and dimensional stability, lower thermal expansion |
| TORLON | Polyamide-imide | Highest strength thermoplastic, 500°F+ capability, excellent wear resistance |
| ULTEM | Polyetherimide | High strength, flame resistance, excellent dimensional stability |
FLUOROPOLYMERS
| MATERIAL | DESCRIPTION | KEY PROPERTIES |
| PTFE | Virgin PTFE | Lowest friction, chemically inert, -400°F to +500°F, FDA compliant grades available |
| RULON | Filled PTFE composite | Improved wear resistance and stability vs. virgin PTFE, self-lubricating |
Polyamide
| MATERIAL | DESCRIPTION | KEY PROPERTIES |
| VESPEL | Thermosetting polyimide | Extreme temperature resistance (600°F+), low outgassing, no melting point |
ENGINEERING THERMOPLASTICS
| MATERIAL | DESCRIPTION | KEY PROPERTIES |
| DELRIN | Acetal copolymer | Excellent machinability, low friction, high stiffness, dimensional stability |
| NYLON | Polyamide | Good mechanical properties, wear resistance, cost-effective |
| PEBAX | Thermoplastic elastomer | Flexibility with toughness, chemical resistance, medical applications |
| ACRYLIC | PMMA | Optical clarity, weather resistance, dimensional stability |
| ABS | Acrylonitrile butadiene styrene | Impact resistance, good machinability, prototypes and tooling |
| PVC | Polyvinyl chloride | Chemical resistance, flame retardance, industrial |
Medical & FDA Compliance
We supply FDA-compliant grades of PEEK and PTFE for medical device manufacturing and food contact applications. These materials provide documented biocompatibility and resist repeated sterilization including autoclave, gamma radiation, and EtO.
Specialized Plastic Processing
Processing plastics requires different approaches than metals. Our capabilities include:
- Optimized abrasives and techniques that prevent heat buildup, melting, and surface degradation
- Superior surface finishes suitable for bearing surfaces, sealing applications, and precision assemblies
- Dimensional control accounting for thermal expansion differences vs. metals
- Material-specific parameters adjusted for rigid materials, soft fluoropolymers, or reinforced composites
Your Partner for Precision Plastic Components
We control diameter to ±0.00004″ (2μm), maintain excellent roundness and straightness, and achieve surface finishes suitable for medical devices, semiconductor equipment, and precision assemblies.
Whether you’re producing biocompatible medical components from FDA-compliant PEEK, low-friction bearing surfaces from PTFE composites, or high-temperature semiconductor parts from Vespel, Centerless Products delivers the material consistency and dimensional accuracy your manufacturing process demands. Contact us today to discuss your needs.