Stock shapes made from Ertacetal™ C ELS POM-C (copolymer acetal) exhibit excellent electrical conductivity qualities, low moisture absorption, high strength and stiffness and great machinability capabilities. This grade in particular is recommended for use in electrical and explosion sensitive applications.
PROPERTIES
Excellent electrical conductivity
Low moisture absorption
High strength and stiffness
Great machinability
Thermal Properties
Property
Value
Heat Deflection Temperature at 1.8MPa (264 psi) (ºC)
105
Continuous allowable service temperature in air
100
Mechanical Properties
Property
Value
Tensile Strength (MPa)
30
Tensile Modulus of Elasticity (MPa)
1,500
Compressive stress at 1% nominal strain (MPa)
14
Compressive stress at 2% nominal strain (MPa)
Compressive stress at 5% nominal strain (MPa)
37
Flexural Strength (MPa)
Charpy Impact Notched (kJ/m²)
5.0
Chemical Properties
Property
Value
Hot Water / Steam
Limited
Acids, Weak
Limited
Acids, Strong (pH 1-3)
Not acceptable
Alkalies, Weak
Acceptable
Alkalies, Strong (pH 11-14)
Acceptable
Hydrocarbons - Aromatic
Not acceptable
Hydrocarbons - Aliphatic
Acceptable
Ketones, Esters
Acceptable
Chlorinated Solvents
Limited
Alcohols
Acceptable
Inorganic Salt Solutions
Acceptable
Electrical Properties
Property
Value
Dielectric Strength (kV/mm)
Certification Properties
Property
Value
FDA
Not compliant
European Food Approval
Not compliant
NSF
Compliant
3A-SSI
Not compliant
Canada AG
USDA
Compliant
Flammability (UL Rating)
HB
Medical use
FOOD - 3A-SSI FOOD - USDA SEMICON - ESd materials
Miscellaneous Properties
Property
Value
Base Material
POM-C
Brand Family
Colors
Black
Density (g/cm3)
1.41
Water Absorption after 24 hrs immersion in water (%)
