Description
PEEK filler is chemically inert, meaning it does not corrode, leach, or react with process media — making PEEK-filled PTFE safe for pharmaceutical, food-contact, and ultra-high-purity environments. There is no metallic contamination risk.
Hi-Tech Polymers supplies PEEK-filled PTFE in sheet, rod, and tube form and manufactures precision-machined finished components from all stock using our fully equipped in-house CNC and VMC machining facility.
Key Properties
- Filler Content: Typically 20%–40% PEEK powder in PTFE matrix.
- Compressive Strength: Very high — among the best of all PTFE compounds.
- Hardness: High — PEEK particles substantially stiffen the matrix.
- Wear Resistance: Excellent — significantly superior to virgin and glass-filled PTFE.
- Creep Resistance (Cold Flow): Excellent — major improvement over virgin and most filled grades.
- Coefficient of Friction: Very low — retains PTFE's self-lubricating character.
- Chemical Resistance: Excellent — both PTFE and PEEK are highly chemically inert.
- Operating Temperature: -200°C to +260°C continuous, limited by the PTFE matrix.
- Metallic Contamination Risk: None — PEEK filler is a polymer and does not contain metal.
- FDA / Pharma Suitability: Yes — contains no metallic or toxic fillers; specific certification should be confirmed as required.
- Density: Approximately 2.0–2.1 g/cm³, lower than bronze-filled grades, resulting in lighter components.
Typical Applications
- High-pressure oil & gas valves, wellhead equipment, and downhole components
- Pharmaceutical and biotech processing equipment (clean, non-contaminating)
- Semiconductor and cleanroom handling equipment (polymer-pure, no metallic particles)
- Aerospace hydraulic and fuel system components
- Chemical processing — aggressive acid and solvent service
- High-speed dynamic seals in fluid power systems
- Food and beverage processing machinery
- High-temperature autoclave and sterilisation equipment
- Precision bearing and sliding components in analytical instruments
Quality & Support
- Material test certificates and filler composition reports available on request
- Dimensional inspection reports for machined components
- Full material traceability — from resin and filler to finished part
- Material test certificates and compound composition reports available on request
- Technical consultation on grade selection, PV limits, and design guidance
- Drawings accepted in PDF, DWG, DXF, STEP formats
Technical Details
Sheets
- Standard sizes: 1000 × 1000 mm, 1200 × 1200 mm, 2000 × 1000 mm
- Thickness: 3 mm to 80 mm
- Custom cut sizes and thicknesses available on request
Rods
- Diameter Range: Ø10 mm to Ø250 mm
- Standard lengths: 300 mm, 500 mm, 1000 mm
- Custom diameters and cut lengths available on request
Tubes
- OD/ID combinations available on request
- Moulded and machined tubes available
- Custom lengths available
Typical Machined Components
- Technical consultation on grade selection, PV limits, and design guidance
- Piston seals and back-up rings for high-pressure hydraulic cylinders
- Guide rings and wear rings for hydraulic and pneumatic systems
- Compressor piston rings and rider rings
- High-load plain bearings and bushings
- Rotary shaft seals in chemical pump applications
- Precision insulators and stand-offs for semiconductor equipment
- Diaphragms and custom sealing profiles
- Any high-performance sealing or bearing component as per drawing
Available Colors
- Black
- Grey
Grades Available
- PEEK-Filled PTFE — 20% PEEK content
- PEEK-Filled PTFE — 25% PEEK content
- PEEK-Filled PTFE — 40% PEEK content
- PEEK + PTFE + Graphite hybrid grades (for enhanced lubricity in dynamic sealing)
- Custom formulations available on request