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Overview
Kormax Acetal [technical name Polyoxymethylene] generally comes in either natural white or black colour. Acetal material has low moisture absorption [stable in humid environments], excellent machinability and its FDA compliance allows for direct contact with food stuffs. The black has improved UV resistance and is the preferred choice for outdoor / applications in direct sunlight. It has good dimensional stability but should not be used in temperatures operating above 90°C.
Common Applications
Chain guides
Chute liners
Dock fenders
Food processing machinery parts
High speed conveyors
Hopper liners
Packaging machinery parts
Star wheels
Under-chain wear strips
Key Features
Excellent wear resistance
Good chemical resistance
Excellent impact resistance at minus temperatures
Excellent value at a low cost
Material Profile
Profile
Size Range
Metric Size Range (mm)
Availability
Rod
See Size Range
25 to 250
NZ Only
Sheet
See Size Range
3 to 100
NZ Only
Diameter (mm)
Weight (Kg/MTR)
Colour 1
Colour 2
5
0.04
-
White
12
0.19
Black
-
16
0.32
Black
White
20
0.47
Black
White
25
0.74
Black
White
30
1.06
Black
-
32
1.24
Black
-
35
1.45
Black
White
40
1.87
Black
White
45
2.37
Black
White
50
2.97
Black
White
55
3.56
Black
White
60
4.20
Black
White
65
4.97
Black
White
70
5.70
Black
White
75
6.58
Black
White
80
7.46
Black
White
90
9.57
Black
White
100
11.86
Black
White
110
14.40
Black
White
120
17.05
Black
White
125
18.30
-
White
130
20.28
Black
White
140
23.45
-
White
150
26.75
Black
White
160
30.68
-
White
180
38.55
Black
White
200
47.55
Black
White
235
66.80
-
White
250
77.50
-
White
300
112.00
-
White
T (mm)
Weight (Kg/MTR)
Colour 1
Colour 2
4
5.64
-
White
5
7.05
-
White
6
8.46
Black
White
8
11.28
-
White
10
14.1
Black
White
12
16.92
Black
White
15
21.15
Black
White
20
28.2
Black
White
25
35.25
Black
White
30
42.3
Black
White
35
49.35
Black
-
40
56.4
Black
White
50
70.5
Black
White
60
84.6
Black
White
80
112.8
Black
White
100
141
Black
White
Acetal (POM)
Acetal (POM)
Acetal (POM)
Acetal (POM)
Dimensional Tolerances
| Sheet | |
| Thickness | Tolerances |
| 1 mm to 10 mm | +0.2 mm to +1.0 mm |
| 12mm to 25 mm | +0.3 mm to +1.5 mm |
| 30 mm to 50 mm | +0.5 mm to +2.5 mm |
| 60 mm to 100 mm | +0.1 mm to +3.5 mm |
| Rod | |
| Diameter | Tolerances |
| 5 mm to 25 mm | +0.1 mm to +1.1 mm |
| 26 mm to 56 mm | +0.2 mm to +1.3 mm |
| 60 mm to 100 mm | +0.4 mm to +2.2 mm |
| 110 mm to 150 mm | +0.5 mm to +4 mm |
| 160 mm + | +1.0 mm to +6 mm |
Mechanical Properties
| Material | Metric Values | Imperial Values |
| Tensile Strength at Break | 65 N/mm² | 9400 psi |
| Yield Strength | 67 N/mm² | 9700 psi |
| Elongation at Yield | 22% | 22% |
| Hardness | 125 MPa | 125 MPa |
Thermal Properties
| Thermal Properties | Temperature |
| Melting Point | 165°C |
| Maximum Service Temperature | 90°C |
Resources
Data Sheet
Acetal (POM) Data Sheet
PDF (124 KB)
https://www.kormax.com/wp-content/uploads/2022/11/Kormax-Acetal-POM-C-Data-Sheet-Updated-6_10.pdf
Polymer Properties Chart
PDF (100 KB)
Polymer Material Selector Chart
PDF (140 KB)
Download Our Plastics Book Here
Complete range of Kormax Thermoplastic Polymers for New Zealand industries.
Quality Management
Quality materials, delivered to standard.
Kormax is ISO certified for ISO 9001, ISO 14001, and ISO 45001.
All Kormax products come with batch certifications.
