Guides / Grades
PEEK grades and material behaviour
Which grade goes on the drawing, and what each one gives up to give you something else.
- Grades
Oct 28, 2026X-Ray Opaque PEEK: Barium Sulfate Grades for Medical Parts
X-ray opaque PEEK uses barium sulfate to show on imaging. See how filler level changes visibility, strength and machining, and what to ask a shop to document.
- Grades
Oct 24, 2026PEEK vs Vespel Polyimide: Service Above 260°C Compared
PEEK vs Vespel polyimide above 260 °C: compare service limits, wear, moisture, steam and cost, and learn when a polyimide part is worth several times the price.
- Grades
Oct 23, 2026PEEK vs Ultem (PEI) for High Temperature Insulators
PEEK vs Ultem for high temperature insulators: compare dielectric strength, heat limits, stiffness above glass transition and cost, and see where PEI is enough.
- Grades
Oct 22, 2026PEEK vs PPS for Pump, Valve and Electrical Components
PEEK vs PPS for pump, valve and electrical parts: compare toughness, heat limit, chemical resistance and cost, and see when the cheaper plastic is right.
- Grades
Oct 21, 2026PEEK vs PEKK and Other PAEK Grades for Machined Parts
PEEK vs PEKK is a question about stock availability, heat and crystallinity. Compare PAEK family melting points, glass transition and machining behaviour.
- Grades
Oct 13, 2026ESD and Static Dissipative PEEK Grades for Wafer Handling
ESD PEEK for wafer handling must dissipate charge without shedding particles. Resistance ranges, filler types, machining effects and what to put on an RFQ.
- Grades
Oct 6, 2026Natural vs Black PEEK: Pigment, Properties, Traceability
Black PEEK vs natural PEEK differ in more than looks. Compare pigment effects on properties, electrical behaviour, inspection and traceability before choosing.
- Grades
Sep 26, 2026Implant Grade PEEK: ISO 10993, USP Class VI, ASTM F2026
What ASTM F2026, ISO 10993 and USP Class VI each cover for implant grade PEEK, what the paperwork chain looks like on a machined part, and what a machine shop cannot certify.
- Grades
Sep 20, 2026Bearing Grade PEEK for Dry Running Bushings and Wear
What bearing grade PEEK is made of, the friction and PV it gives, where it beats unfilled and filled grades, and how to design a bushing that survives dry running.
- Grades
Sep 20, 2026PEEK CF30 vs GF30: Choosing the Right Filled Grade
CF30 and GF30 compared on stiffness, expansion, heat transfer, conductivity, wear, cost and machining, with the four questions that settle which one your part needs.
- Grades
Sep 20, 2026PEEK Chemical Resistance, Steam and Hot Water Limits
PEEK handles most acids, bases, solvents, steam and hot water. Here is the short list of chemicals that attack it, plus how stress and temperature change the answer.
- Grades
Sep 20, 2026PEEK Grades Compared: Unfilled, GF30, CF30 and Bearing
Unfilled, glass filled, carbon filled, bearing grade and implant grade PEEK compared on stiffness, temperature, wear, expansion and what each one costs to machine.
- Grades
Sep 20, 2026PEEK Material Properties: Data for Design Engineers
Typical PEEK data in one place: strength, modulus, temperature limits, expansion, electrical and wear numbers, with what each one changes when you design a part.
All guides and the questions they answer.