Alro logo Alro Steel was established in 1948 by Al and Robert Glick. Today, Alro is comprised of Alro Steel, Alro Metals, Alro Plastics and Alro Metals Outlet.

Alro Plastics Product: KETRON® (PEEK)


KETRON® (PEEK) Colors - Natural and Black 

Size and Availability:

Sheet / Slab stock:
- Thickness: 1/4”thk to 4”thk standard
- Sheet sizes: 24” x 48” standard

Rod / Round stock:
- Diameters: 1/4”dia to 6”dia standard
- Rod length: 4 feet and 8 feet standard

Ketron® PEEK grades offer chemical and hydrolysis resistance similar to PPS but can operate at higher temperatures. Unreinforced, extruded Ketron PEEK offers good wear resistance and can be used continuously to 480°F (250°C). It can also be used in hot water or steam without permanent loss in physical properties. For hostile environments, PEEK is a high-strength alternative to fluoropolymers. PEEK carries a V-O flammability rating and exhibits very low smoke and toxic gas emission when exposed to flame. Structural & Chemical Integrity to 480°F (250°C)


  • Excellent chemical resistance
  • Very low moisture absorption
  • Inherently good wear and abrasion resistance
  • Unaffected by continuous exposure to hot water or steam
  • FDA compliant


  • Valve seats
  • Pump gears
  • High purity seals
  • Bushings & Bearings
  • Electrical connectors
  • Wafer carriers
  • Screws and Impellers
  • Gears and wear blades
  • Laboratory & analytical equipment