VICTREX™ PEEK 90G — Unfilled Injection Molding Polyetheretherketone (PEEK)

Description

VICTREX™ PEEK 90G is an unfilled injection molding grade of polyetheretherketone (PEEK) from Victrex (United Kingdom, the world leader in PEEK polymers). Grade designation: 9 — standard molecular weight, 0 — no reinforcement, G — granules for injection molding. A high-flow (HF) grade for parts with complex geometry, thin-walled components and long melt flow paths.

PEEK is one of the most heat-resistant engineering thermoplastics. It costs 1–2 orders of magnitude more than PA66/PBT, but offers a unique combination of properties: continuous service temperature of 250 °C, melting point of 343 °C, inherent flame resistance of UL 94 V-0 at 1.45 mm without flame retardants, and minimal emission of smoke and toxic combustion products (FAR 25.853). It has no chemical equivalents among mid-priced thermoplastics.

Technical parameters (typical for VICTREX™ 90G): HDT/A ~152 °C (ISO 75-2, 1.8 MPa), Tg 143 °C, density 1.30 g/cm³, tensile strength ~100 MPa, tensile modulus ~3.8 GPa, MFR ~50 g/10 min (380 °C, 5 kg — high-flow grade). Certified for food contact (FDA 21 CFR 177.2415, EU 10/2011), suitable for autoclave sterilization (134 °C / 1000+ cycles), gamma irradiation, ETO and steam-in-place.

Key advantages

• Continuous service temperature of 250 °C, short-term up to 310 °C; melting point 343 °C
• Inherent flame resistance UL 94 V-0 at 1.45 mm without flame retardants; FAR 25.853 (flammability, smoke, toxicity) — suitable for aircraft passenger cabins
• Sterilization by all major methods: autoclave (>1000 cycles at 134 °C), gamma (up to 1000 kGy without significant degradation), ETO, plasma
• FDA / EU 10/2011 compliance — food contact
• High resistance to hydrolysis in boiling water and steam (minimal degradation after 1000+ hours)
• Resistance to most organic solvents, acids and alkalis (except concentrated H₂SO₄ and halogenated hydrocarbons at high temperatures)
• Minimal outgassing in vacuum (low outgassing) — suitable for UHV and space applications
• Retention of mechanical properties after long-term radiation exposure
• Biocompatibility per USP Class VI, ISO 10993 (for PEEK-OPTIMA™ medical grade — a separate Invibio grade)

Applications

• Aerospace: cable system brackets, cabin connectors for Boeing 787 / Airbus A350, fire alarm sensor housings, interior components subject to FAR 25.853 requirements (Boeing, Airbus, COMAC, Embraer)
• Medical devices: reusable surgical instruments, endoscope housings, anesthesia equipment components, sterilization containers (for implantable devices — VICTREX™ PEEK-OPTIMA from Invibio)
• Oil and gas: downhole seals and bushings (at depths up to 8 km at 200 °C), pressure sensor housings, wireline logging components
• Semiconductor equipment: wafer carriers, test sockets, wafer handling guides — resistance to plasma and cleaning solutions
• High-temperature electrical engineering: components for lead-free reflow soldering (260 °C+), motor coil insulators, high-power BMS connectors
• Food and pharmaceutical industries: seals and components for CIP/SIP equipment, dosing valves

Global equivalents: Solvay KetaSpire™ KT-820 NT, Evonik VESTAKEEP® 2000G, Sumitomo Sumiploy™ EK-2000NT. VICTREX™ PEEK is the original grade from Victrex plc; supply under our brand is available.

The values shown are measured using in-house methods close to the corresponding ISO and GOST standards. This information is for reference only and does not constitute an official batch datasheet. Please request the TDS and MSDS for the specific batch before industrial use.