POM | CutWise

POM (Polyoxymethylene)

Plastic

POM, better known as polyacetal or Delrin®, is a high-performance engineering plastic prized for its exceptional mechanical strength, dimensional stability, and low friction coefficient. Thanks to these qualities, POM is ideal for applications where precision and wear resistance are critical.
Well-known trade names for POM include Delrin®, Hostaform®, and Ultraform®. These materials are renowned for their reliability and are widely used across various industrial sectors.

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Properties of POM

Very high mechanical strength and stiffness
Low friction coefficient and excellent wear resistance
High dimensional stability, even at varying temperatures
Good chemical resistance to solvents, fuels, and oils
Low moisture absorption, suitable for humid environments
Excellent fatigue resistance
Good electrical insulating properties
Food-contact safe (FDA-compliant in certain grades)

Thanks to this combination of properties, POM is especially popular in machinery, automotive, and precision engineering. In some applications, POM can serve as an alternative to metal components like aluminum or brass.

Datasheet Title

Technical properties of POM

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Product information and operations

Thickness	Dimensions	Color
0.5 mm	2000x1000 mm	Naturel
0.8 mm	2000x1000 mm	Naturel
1 mm	2000x1000 mm	Naturel Zwart
1.5 mm	2000x1000 mm	Naturel
2 mm	2000x1000 mm	Naturel Zwart
2,5 mm	2000x1000 mm	Naturel
3 mm	2000x1000 mm	Naturel Zwart
4 mm	2000x1000 mm	Naturel Zwart
5 mm	2000x1000 mmv	Naturel Zwart
6 mm	2000x1000 mm	Naturel Zwart
8 mm	2000x1000 mm	Naturel Zwart
10 mm	2000x1000 mm	Naturel Zwart Blauw
12 mm	2000x1000 mm	Naturel Zwart
16 mm	2000x1000 mm	Naturel Zwart Blauw
20 mm	2000x1000 mm	Naturel Zwart Blauw
25 mm	3000x620 mm	Naturel Zwart
30 mm	3000x620 mm	Zwart Naturel
35 mm	3000x620 mm	Zwart Naturel
40 mm	3000x620 mm	Zwart Naturel

Technical properties

Algemeen

Soortelijke massa 1,41 g/cm³

Vochtopname bij normaal klimaat 0,25 %

Brandgedrag HB/V2

Specifieke warmtecapaciteit 1,67 kj/Kg°C

Temperatuurbereik

Minimale gebruikstemperatuur -50°C

Maximale gebruikstemperatuur +100°C

Mechanisch

Treksterkte 70 N/mm²

Rek tot breuk 40 %

E-Modulus 3100 N/mm²

Buigsterkte 115 N/mm²

Slagsterkte 8 kJ/m²

Shore of kogeldruk hardheid 82 Shore °D

Wrijvingscoëfficiënt 0,36

Elektrisch

Relatieve elektrische constante 3,4 / 100 Hz

Diëlektrische verliesfactor 0,0003 / tan(δ) x10⁻³

Specifieke weerstand 10^14 / Ω cm

Oppervlakte weerstand 10^13 / Ω

Kruipstroomvastheid >600 KC

Doorslagspanning 50 kV/mm

Thermisch

Kristallijn smeltpunt 165 °C

Warmte geleidbaarheid 0,33 W/m°K

Lineaire uitzettingscoëfficiënt 0,1 mm/m°C

Gebruikstemperatuur lange termijn onbelast -50 °C

Maximale gebruikstemperatuur korte termijn 140 °C

Hitte vormbestendigheid 125 °C

Applications of POM

Precision gears and bearings

Valve and pump components

Sliding and guide elements

Switches and housings

Automotive interior parts

Marine parts and fittings

Food machinery

Medical equipment components

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Frequently Asked Questions about POM

Can POM be laser cut?

Yes—POM can be laser cut, but due to smoke and odor generation, milling is often the preferred option.

What are alternatives to POM?

Depending on the application, PA (nylon) or PET are good alternatives, especially when wear resistance or dimensional stability are key.

Is POM resistant to chemicals?

POM offers good resistance to many chemicals such as fuels, oils, and solvents, but less so against strong acids and oxidizing agents.

Is POM suitable for outdoor use?

POM has moderate UV resistance. For prolonged outdoor exposure, UV-stabilized grades or alternative plastics are recommended.

Is POM food-safe?

Yes many POM grades are FDA-compliant and suitable for food-industry applications.

How does POM perform at low temperatures?

POM retains its strength and toughness down to –40 °C, making it ideal for cold-temperature uses.

Can POM replace metal parts?

Yes due to its strength, wear resistance, and dimensional stability, POM can often replace metal components, reducing weight and cost.

How good is POM’s wear resistance?

POM features a very low coefficient of friction and excellent wear resistance, ideal for moving parts.

Is POM electrically insulating?

Yes POM has good dielectric properties and is frequently used in electrical applications.

What is POM’s temperature range?

POM is suitable for use between –40 °C and +100 °C, with short-term peak loads up to 140 °C.

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Material HB Title

POM LASER CUTTING OR MILLING?

POM (Polyoxymethylene)

Properties of POM