Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Domestic Copolyoxymethylene

DomesticCopolyoxymethyleneisabrandedengineeringthermoplasticfromtheDelrin®serieswithmodelAC25—ahigh-strength,low-frictioncopolymeracetalofferingexcellentdimensionalstability,chemicalresistance,andwearperformanceforprecisionmechanicalcomponentsinautomotiveandindustrialapplications.
  • domestic copolyoxymethylene_e5e4ee61
  • domestic copolyoxymethylene_e5e4ee61

Features Of Domestic Copolyoxymethylene

  1. High dimensional stability under varying temperature and humidity conditions

  2. Excellent creep resistance and long-term mechanical retention

  3. Superior chemical resistance to hydrocarbons, solvents, and neutral aqueous solutions

  4. Low coefficient of friction and high surface hardness for wear-prone components

  5. Good processability via injection molding and extrusion with minimal thermal degradation

Typical Applications Of Domestic Copolyoxymethylene

  1. Automotive fuel systems, including fuel sender units and throttle bodies

  2. Industrial gears, bushings, and precision transmission components

  3. Consumer appliance parts such as washing machine agitators and coffee maker housings

  4. Electrical connectors and housing components requiring dimensional accuracy and rigidity

  5. Medical device components where biocompatibility (ISO 10993-compliant grades) and sterilizability are required

Specifications Of Domestic Copolyoxymethylene

Chemical TypeCopolymer of formaldehyde (with comonomer: e.g., dioxolane)
Product FormNatural or color-stabilized granules
AppearanceOpaque white or off-white free-flowing pellets
Density (g/cm³)1.41–1.43 (ASTM D792)
Melt Flow Rate (g/10 min)8–12 (at 190°C/2.16 kg, ASTM D1238)
Tensile Strength (MPa)60–65 (ASTM D638)
Flexural Modulus (MPa)2500–2700 (ASTM D790)
Notched Izod Impact (J/m)50–70 (ASTM D256)


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