Acetal C, H Sheets

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Acetal C and H

acetal is a hard engineering plastic derived from the polymerization of formaldehyde. It is highly suitable for automatic machining and precision mechanical parts. It exhibits high tensile strength, hardness and impact resistance. The low moisture absorption of acetal gives excellent dimensional stability for close tolerance parts, such as bearings and gears.
Machined components for bakery equipment.

There are two types: acetal C (copolymer) and acetal H (homopolymer).

acetal C is more resistant to hydrolysis, strong alkalis and thermo-oxidative degradation; acetal H has higher mechanical strength, stiffness, hardness better wear resistance.
acetal is also widely used in mechanical components and electrical insulators where exceptional strength is required for above-average temperatures or moisture levels. It is FDA approved and can be used in contact with food, especially in liquid environments. acetal is available in natural or black in a range of rods and sheets.

Temperature range:

acetal C -50°C to +100°C (-50°C to +85°C in water)
acetal H -50°C to +90°C (-50°C to +60°C in water)

Acetal C H


  • High mechanical strength
  • Good impact resistance
  • Low stick/slip properties
  • Good machining properties
  • Excellent resilience
  • Physiologically inert - suitable for food contact
  • Good dimensional stability


  • Heavily loaded bearings/rollers
  • Gear wheels with small modules
  • Bearings/gears with small tolerances
  • Valve seats, snap-fit assemblies
  • Insulating components in electrical engineering
  • Cam followers
  • Thrust washers


Rod from 6mm to 150mm
Sheet from 8mm to 70mm
Rod from 3mm to 200mm
Sheet from 3mm to 50mm


Rod Standard length: 3000mm
Sheet Standard size: 3000 x 500mm
Tube Available on indent only: subject to minimum order quantities.