Acetal polymers, referred to chemically as PolyOxyMethylene, are semi-crystalline engineering themoplastics made by the polymerization of formaldehyde. They have physical properties that are not available with metals or most other plastics; high mechanical strength and rigidity, low coefficients of friction, low moisture absorption, excellent dimensional stability, fatigue endurance, and resistance to abrasion and creep. These materials are also resistant to a wide range of solvents and have good electrical properties.

Acetal polymers, referred to chemically as PolyOxyMethylene, are semi-crystalline engineering themoplastics made by the polymerization of formaldehyde. They have physical properties that are not available with metals or most other plastics; high mechanical strength and rigidity, low coefficients of friction, low moisture absorption, excellent dimensional stability, fatigue endurance, and resistance to abrasion and creep. These materials are also resistant to a wide range of solvents and have good electrical properties.

DuPont Delrin® is a homopolymer acetal which offers an excellent balance of properties that bridge the gap between metals and plastics.  Delrin® shapes possess high tensile strength, creep resistance and toughness.  It also exhibits low moisture absorption, it is chemically resistant to hydrocarbons, solvents and neutral chemicals.  These properties along with its fatigue endurance make Delrin® shapes ideal for many industrial applications.
Delrin® 150 acetal offers slightly higher mechanical properties than acetal copolymer, but may contain a low density center (also known as "centerline porosity") especially in large cross-sections.

DuPont Delrin® is a homopolymer acetal which offers an excellent balance of properties that bridge the gap between metals and plastics.  Delrin® shapes possess high tensile strength, creep resistance and toughness.  It also exhibits low moisture absorption, it is chemically resistant to hydrocarbons, solvents and neutral chemicals.  These properties along with its fatigue endurance make Delrin® shapes ideal for many industrial applications.
Delrin® 150 acetal offers slightly higher mechanical properties than acetal copolymer, but may contain a low density center (also known as "centerline porosity") especially in large cross-sections.

DELRIN® AF BLEND is a unique themoplastic material for use in moving parts in which low friction and long wear life are important. It is a combination of PTFE fibers uniformly dispersed in DELRIN® Acetal resin. This combination offers better wear characteristics than unfilled DELRIN®.  DELRIN® AF BLEND, supplied as a 2:1 blend of DELRIN®AF100 and DELRIN® 150 resins, has excellent sliding / friction properties.  Bearings made of DELRIN® AF BLEND can operate at higher speeds while exhibiting reduced wear. These bearings are also essentially free of slip-stick behavior because the static and dynamic coefficient of friction are closer than with most plastics.  DELRIN® AF BLEND retains 90% of the strength that is inherent in unmodified DELRIN® Acetal. Some properties are changed due to the addition of the softer PTFE fiber.

DELRIN® AF BLEND is a unique themoplastic material for use in moving parts in which low friction and long wear life are important. It is a combination of PTFE fibers uniformly dispersed in DELRIN® Acetal resin. This combination offers better wear characteristics than unfilled DELRIN®.  DELRIN® AF BLEND, supplied as a 2:1 blend of DELRIN®AF100 and DELRIN® 150 resins, has excellent sliding / friction properties.  Bearings made of DELRIN® AF BLEND can operate at higher speeds while exhibiting reduced wear. These bearings are also essentially free of slip-stick behavior because the static and dynamic coefficient of friction are closer than with most plastics.  DELRIN® AF BLEND retains 90% of the strength that is inherent in unmodified DELRIN® Acetal. Some properties are changed due to the addition of the softer PTFE fiber.