POMAcetal (polyoxymethylene)
Acetal (POM) is a crystalline thermoplastic and a representative engineering plastic, with excellent mechanical strength, optical and thermal properties, and moldability. It is widely used in electrical, automotive, machinery, construction materials and functional consumer goods. It has the best friction and wear resistance of any thermoplastic and is self-lubricating, so it is common in non-lubricated parts.
- Continuous service temp.
- −45~95℃
- Sheet thickness
- 3~100mm
- Rod diameter
- Φ3~300mm
Features
Continuous service temperature −45 to 95℃
Excellent short-term thermal properties such as melting point and heat deflection temperature, and outstanding durability in long-term use in hot air and hot water.
Chemical resistance
Highly durable against inorganic chemicals and oils.
Creep resistance
Excellent creep resistance over a wide temperature range, with almost no deformation in various oils and chemicals.
Fatigue resistance
Withstands repeated impact and continuous vibration without fatigue and keeps stable performance.
Friction and wear resistance
The best friction and wear resistance among thermoplastics, plus self-lubrication, make it widely used for non-lubricated parts.
Mechanical properties over a wide temperature range
A balanced combination of tensile strength, elongation and impact strength that is retained under long-term load.
Properties
| Property | Unit | Test method | Value |
|---|---|---|---|
| Continuous service temperature | ℃ | — | −45~95 |
| Density | g/cm³ | — | Pending |
| Tensile strength | MPa | — | Pending |
| Flexural modulus | MPa | — | Pending |
| Heat deflection temperature | ℃ | — | Pending |
| Water absorption | % | — | Pending |
Typical values; they vary by grade and form. Rows marked “Pending” are still being verified — ask for them with your quote request if you need them.
Sizes
Acetal sheet
- 3
- 5
- 6
- 8
- 10
- 12
- 15
- 20
- 25
- 30
- 35
- 40
- 45
- 50
- 60
- 70
- 80
- 90
- 100
Acetal rod
- White
- 3
- 4
- 5
- 6
- 8
- 10
- 12
- 15
- 18
- 20
- 22
- 25
- 30
- 32
- 35
- 40
- 45
- 50
- 55
- 60
- 65
- 70
- 75
- 80
- 85
- 90
- 95
- 100
- 110
- 115
- 120
- 130
- 140
- 150
- 160
- 170
- 180
- 190
- 200
- 210
- 225
- 250
- 300
- Black
- 3
- 4
- 5
- 6
- 8
- 10
- 12
- 15
- 18
- 20
- 22
- 25
- 30
- 32
- 35
- 40
- 45
- 50
- 55
- 60
- 65
- 70
- 75
- 80
- 85
- 90
- 95
- 100
- 110
- 115
- 120
- 130
- 140
- 150
- 160
- 170
- 180
- 190
- 200
- 210
- 225
- 250
- 300
Applications
- Precision machine parts
- Gears and rollers
- Brackets
- Linear-type parts
- Insulating parts for electrical, electronic and semiconductor uses
- Wear plates
- Screws and wheels
Frequently asked questions
What temperature range can acetal be used in?
Its continuous service temperature is −45 to 95℃, and it remains durable in long-term use in hot air and hot water.
What sizes of acetal sheet and rod are available?
Sheet comes in white and black, 3, 5, 6, 8, 10, 12, 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100 mm thick. Rod comes in white and black, both in diameters Φ3, 4, 5, 6, 8, 10, 12, 15, 18, 20, 22, 25, 30, 32, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 110, 115, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 225, 250, 300 mm.
Is acetal suitable for sliding parts that run without lubrication?
Yes. It has the best friction and wear resistance of any thermoplastic and is self-lubricating, so it is widely used for non-lubricated parts.
Which chemicals does acetal resist?
It is highly durable against inorganic chemicals and oils and shows almost no deformation in various oils and chemicals.
