Plastic Machining Inc. has extensive experience in machining Delrin® parts and is able to make them to your specifications or help you design parts to fit your needs. Processing and machining of Delrin® parts take place in a completely controlled environment, and complete records of our products are maintained. Excellence is built into every part that we machine.
For an affordable quote on your custom Delrin® parts, please e-mail us, call us at 888-761-4262, or use our contact form.
Material Description
Delrin® is the homopolymer version of Acetal.
Acetal homopolymer made with Delrin® offers slightly higher mechanical properties than acetal copolymer but may contain a low-density center, especially in large cross-sections. This homopolymer also offers a little less chemical resistance than copolymer acetal. For example, Delrin® is ideal for small diameter, thin-walled bushings that benefit from the additional strength and rigidity of homopolymer acetal.
Delrin® is available in black and natural (off-white) colors.
See also: Acetal Plastic Machined Parts
Notable Material Features
- High mechanical strength, dimensional stability, and rigidity
- Very low moisture absorption
- Good wear and abrasion resistance
- Wide range of chemical resistance (including hydrocarbons, neutral chemicals, and many solvents)
- Natural lubricity
Grades Of Delrin
Delrin® (unfilled)
Acetal homopolymer 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. The homopolymer also gives slightly less chemical resistance than copolymer acetal. For example, Delrin® is ideal for small diameter, thin-walled bushings that benefit from the additional strength and rigidity of homopolymer acetal. Delrin® is available in natural and black.
Delrin® AF (PTFE-filled) Brown
This material is manufactured from Delrin® homopolymer resin which has been uniformly filled with a dispersion of PTFE fibers. Delrin® AF is a unique thermoplastic material for use in moving parts in which low friction and long wear life are important. It retains 90% of the mechanical strength of unfilled Acetal homopolymer while offering very low friction.
Delrin® 150 SA natural
Standard general purpose, unfilled acetal. This grade has the best impact toughness of all unfilled Delrin® products.
Delrin® 100 Black
This is the black equivalent to the 150 SA. It has the best toughness of any standard acetal. It is also UV stabilized.
Delrin® 550 SA natural
A general purpose, unfilled acetal. This grade has the best machinability of all standard Delrin®.
Delrin® 507 Black
This is the black equivalent to the 550 SA. It has the best machinability of all standard acetal grades. This grade has outstanding UV stabilization.
Delrin® 570
This grade has 15% or 20% glass fiber filler. It has much greater mechanical properties over unfilled acetals.
Delrin® is a registered trademark of E. I. du Pont de Nemours and Company.