Acetal Material

Acetal Materials (Polyoxymethylene or POM)

Acetal (polyoxymethylene or POM) is a high strength, low friction engineering plastic with excellent wear properties in both wet and dry environments. Acetal material is chemically resistant to hydrocarbons, solvents and neutral chemicals.

Easy to machine, Acetal materials makes POM Plastic is an excellent choice for applications that require complex, tight tolerances. Polyoxymethylene POM also known as Polyacetal, and Polyformaldehyde That is an engineering thermoplastic used in plastic material products of Acetal.

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ACETAL IS WIDELY USED FOR:

Bearings and bushings
Pump and valve parts
Manifolds
Gears
Jigs and fixtures
Food processing and other
packaging machinery parts
Wear pads
Electrical components

PERFORMANCE CHARACTERISTICS:

Strong and stiff
Excellent machinability
Low moisture absorption
Excellent wear properties in both
wet and dry environments
Low friction
Good chemical resistance

 

COMMON BRANDS:

Delrin®
SUSTARIN®
TECAFORM®

SHEETDimensions:
6 in x 6 in – 48 in x 120 in
Thickness:
0.031 in – 6 in
RODDiameter:
0.187 in – 12 in
TUBEOutside Diameter:
25 mm – 230 mm
COLORSheet:
Natural, Black, Brown, Blue, Green, Fluorescent Green, Fluorescent Pink,
Orange, Purple, Red, Yellow
Rod:
Natural, Black, Brown, Blue, Green
Tube:
Natura
GRADESStatic Dissipative, Glass-Filled, Enhanced Bearing and Wear, FDA Compliant, Metal and X-ray Detectable

Length, width, thickness, and diameter tolerances vary by size, by manufacturer, brand, and grade. Custom sizes and colors available upon request.

Acetal Properties and Material Options

Homopolymer vs. Copolymer– Acetal is available in both homopolymer (Delrin® 150) and copolymer.

Homopolymer acetal (Delrin®) has superior room temperature strength, stiffness, and toughness.
Copolymer acetal has excellent performance in continuous high heat and hot water environments. Copolymer acetal also tends to have less porosity than homopolymer acetal.
Acetal Grades– Acetal is available in a number of grades, including enhanced bearing and wear Delrin® AF, Delrin® 100AF blend, Delrin® AF DE588, and TECAFORM® HPV13. Delrin® 511P is a homopolymer acetal that offers enhanced crystallization characteristics. This higher level of crystallization helps to augment aspects of the physical properties such as fatigue strength, stiffness, and creep resistance.
Ask about special formulations that offer medical or static dissipative grades.

Food Grade Acetal– FDA compliant copolymer acetal is an optically detectable blue material suitable for food contact. It has good mechanical and wear properties, low moisture absorption, and is easy to machine to tight tolerances.

Optical, Metal, and X-Ray Detectable Acetal–TECAFORM® AH UD Blue is an FDA compliant acetal copolymer designed for food contact. This multi-detectable food grade blue plastic can be detected by optical scanners, metal detection equipment, and x-ray detection equipment. It offers good machinability and mechanical properties for applications in food and pharmaceutical industries.

Chemical Attack– Acetal is chemically resistant to many fuels and solvents.

Wear Resistance– Acetal offers good wear and abrasion properties.

Tech Tip– Glass-filled grades of acetal offer enhanced strength and stiffness such as Delrin® 570.

 
 

TYPICAL PROPERTIES OF ABS

XYZ UNITS ASTMTEST HOMOPOLYMER ACETAL COPOLYMER ACETAL TECAFORM® HPV13 PTFE-FILLED ACETAL 20% GLASS FIBER FILLED HOMOPOLYMERACETAL
Tensile strength psi D638 10,000 9,800 6,800 8,500
Flexural modulus psi D790 420,000 370,000 350,000 730,000
Izod impact (notched) ft-lbs/inof notch D256 1.5 1.0 0.7 0.8
Heat deflectiontemperature@ 264 psi °F D648 257 230 244 316
Maximum continuousservice temperaturein air °F 185 195 185 185
Water absorption(immersion24 hours) % D570 0.25 0.20 0.22 0.25
Coefficient oflinear thermalexpansion in/in/°Fx10-5 D696 6.8 6.1 5.1 2.0 – 4.5
Coefficient offriction (dynamic) 0.20 0.21 0.12 0.35

Please ask your Petron Thermoplast representative for more specific information about an individual brand.

Explore the physical, mechanical, thermal, electrical, and optical properties of acetal plastic materials.

Sort, compare, and find the acetal plastic material suited for your application using our interactive properties table.

 

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