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Polyacetals POM highly crystalline
APPLICATIONS
Business m/c parts, small pressure vessels, aerosol valves, coil formers, clock and watch parts, plumbing systems, shoe components.
PROPERTIES
Rigid, translucent, tough, spring-like qualities, good stress relaxation resistance, good wear and electrical properties, resistant to creep and organic solvents.
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Psysical properties: |
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Tensile Strength |
50 - 70 |
N/mm² |
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E-modulus |
2500 |
MPa |
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Notched Impact Strength |
5.5 - 12 |
kJ/m² |
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Thermal Coefficient of expansion |
110 |
x 10-6 |
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Max Cont Use Temp |
150 - 160 |
0C |
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VicatB Temp |
80 - 100 |
0C |
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Density |
1.41 |
g/cm³ |
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Resistance to chemicals: |
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Dilute Acid |
Poor |
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Dilute Alkalis |
Very good |
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Oils and Greases |
Good (Variable) |
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Aliphatic Hydrocarbons |
Very good |
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Aromatic Hydrocarbons |
Good (Variable) |
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Halogenerated Hydrocarbons |
Poor |
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Alcohols |
Very Good |
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