Machined Parts from Delrin® resin

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Machined Parts Made From Delrin^®

MATERIAL DESCRIPTION

Delrin® is the homopolymer version of Acetal. M&P has extensive experience in machining parts from Delrin® resin. 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. The 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.

Acetal is a commonly used name for a family of thermoplastics with the chemical name PolyOxyMethylene. Acetal is available in a general purpose copolymer grade, a homopolymer version (Delrin®), and several filled grades modified with Delrin®. Acetal has high strength and stiffness characteristics, it has enhanced dimensional stability, and it is easy to machine. Acetal is a semi-crystalline material. Acetal also has a low coefficient of friction and good wear properties.

NOTABLE MATERIAL FEATURES

● High strength, stiffness, dimensional stability
● Very low moisture absorption
●Good wear and abrasion resistance
●Wide range chemical resistance (including many solvents)

GRADES OF ACETAL

ACETAL COPOLYMER (unfilled)
The copolymer grade offers excellent performance at a slightly lower cost than Delrin® Acetal copolymer may exhibit center line porosity, but porosity-free material is available. Certain grades are FDA, USDA, NSF, Canada AG and 3-A Dairy compliant. Low stress levels and high strength assure flatness and dimensional stability up to a maximum continuous service temperature of 180°F.

DELRIN® (unfilled)
Acetal homopolymer offers slightly higher mechanical properties than acetal copolymer, but may contain a low density center (also known as "center line 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® GRADES
● 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, 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® 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.

CUSTOM MACHINED PARTS
Processing and machining of Delrin^® parts take place in a completely controlled environment. We maintain a complete record of our products. We build excellence into every part we machine. M&P's state of the art facilities are always open for you to visit.

Some types of Delrin ® parts we machine are:

Balls Nozzels Semiconductor Parts

Back Up Rings Pads Sheaves

Blocks Parts Spacers

Bushings Plugs Supports

Cams Rings Valve Seats

Caps Rods Washers

Guides Rollers Wear Pads

Medical Parts Seals

M&P keeps many different materials in stock so that we are ready for immediate production.
Call today at 1-800-888-2605 or e-mail us at sales@m-p.com.

Delrin^® is a registered trademark of E.I. du Pont de Nemours Company.

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M&P Flange & Pipe Protection Inc.
9426 Old Katy Rd Bldg #11
Houston, TX 77055
Phone: 800-888-2605   Fax: 713-463-6343        mailto:sales@m-p.com
Copyright © 2008

Balls	Nozzels	Semiconductor Parts
Back Up Rings	Pads	Sheaves
Blocks	Parts	Spacers
Bushings	Plugs	Supports
Cams	Rings	Valve Seats
Caps	Rods	Washers
Guides	Rollers	Wear Pads
Medical Parts	Seals