Polyetheretherketone PEEK
Polyetheretherketone, better known as PEEK, is a high-performance engineered plastic that is uniquely suited to extreme environments. It is commonly used to make machined parts like bearings and other high-wear components, such as bushings, seals, and backup rings.
PEEK offers performance similar to that of PPS (polyphenylene sulfide) plastic, but can operate at higher temperatures—up to 480°F (249°C) in continuous use. Virgin or unfilled PEEK is naturally abrasion resistant and exhibits high chemical and hydrolysis resistance. PEEK produces very little smoke or toxic fumes when exposed to flame, and carries a V-O flame rating.
Thanks to its excellent wear resistance and its ability to withstand continuous exposure to extreme temperatures, hot water, and steam, PEEK is a popular choice in the medical device and life sciences industries, where plastics must undergo autoclave sterilization. PEEK is also common in oil and gas industry applications where parts in deep downhole environments must withstand extreme temperatures, chemicals, and moisture.
OnlinePlastics offers PEEK rod in 0.375”, 0.5”, 0.75”, and 1” diameters and in 12”, 24”, 36”, and 48” standard lengths. Our PEEK rods are available cut-to-length to meet the needs of your specific application. Request a quote on the cut-to-length PEEK rod you need. We are your #1 source for PEEK rod and other high quality plastic materials. Contact us today to place an order or for more information.
Grade | Color | Thickness (inches) | Length (inches) x Width (inches) | Purchase Small Quantities | Quote from tk Engineered Plastics |
---|---|---|---|---|---|
General Purpose | Black | 0.125 to 2 | 24” x 48” or 48” x 120” | Buy from Online Metals Now | See Quote Form Below |
Grade | Color | Thickness (inches) | Length (inches) x Width (inches) | Purchase Small Quantities | Quote from tk Engineered Plastics |
---|---|---|---|---|---|
General Purpose | Black | 0.125 to 2 | 24” x 48” or 48” x 120” | Buy from Online Metals Now | See Quote Form Below |
Acetal Homopolymer & Acetal Copolymers
Two primary versions of acetal are available, those are homopolymer and copolymer. Chemically they are roughly 90% identical, however each acetal variety offers its own unique benefits. In addition filled versions of acetal are available to help meet specific application requirements. Our plastics experts are here to answer your questions, contact us today.
Benefits of Acetal Homopolymer:
- Rigid
- Thermoforms easily
- Can be used in a wide variety of applications
- Impact resistant
- Good chemical resistant
- Low moisture absorption
- Stiffer than acetal copolymers, with higher flexural modulus at ambient temperature and in elevated temperature applications
- Higher impact strengths, at both ambient temperature and low temperatures
- Roughly 10-15% higher tensile strength than copolymers
- Higher continuous use temperature than copolymers (95°C vs. 90°C)
- More flexible and pliable than homopolymer
- Resistant to cracking at lower temperatures
- No moisture absorption
- FDA compliant
- Can be welded
- Can be bonded
- Greater dimensional stability than acetal homopolymer, due to lower crystallinity
- Better chemical resistance with high pH solutions (bases)
- Lower centerline porosity (see below) in extrusions
Other trade names for Acetal include: Celcon®, Delrin®, Ensital®, Pomalux®, Polyacetal®, POM (PolyOxyMethylene) Sustarin®, Tecaform®, Ultraform®, Unital®, and ZL 900.
- Excellent for general purpose parts in wet environments
- Machines to tight tolerances
- Homopolymer and Copolymer versions available to fit different applications
- Filled versions available including PTFE and lubricants*
- Available in FDA and USDA compliant grades
In addition to its general properties, acetal is resistant to a wide range of neutral chemicals, solvents, and hydrocarbons. Common applications for acetal plastic include:
- Bearings, bushings, rollers, and gears
- Wear pads and wear strips
- High speed conveyor lines
- Valves and manifolds
- Scraper blades in food processing applications
- Orthotic and Prosthetic applications, especially upper and lower limb prosthetics
- Food Processing applications requiring FDA compliance for food contact
- High moisture environments
Testing by manufacturers has shown that acetal bearings can outperform nylon bearings 4 to 1 in high moisture or submerged applications. Individual testing for your applications should always be done first. Contact us today for assistance with material selection and testing.
Online Plastics is your direct distributor for all your acetal plastic material needs. We continue to stock acetal plastic from all the top US manufacturers. Contact us for more information, or request a quote today.