Ertacetal™ C LQ POM-C is a white/natural-colored copolymer polyoxymethylene specifically developed for laser writability via IR-YAG and UV-YAG technologies. The acetal copolymer itself is more resistant to hydrolysis, strong alkalis and thermal-oxidative degradation than the homopolymer acetal grad and offers identical physical properties and machinability to the standard Acetron™ GP/Ertacetal™ C POM-C, including low moisture absorption and porosity-free composition.
PROPERTIES
Laser-writeable via IR-YAG, UV-YAG, etc.
Resistant to hydrolysis, strong alkalis and thermal-oxidative degradation
Porosity free and low moisture absorption
Excellent machinability
Thermal Properties
Property
Value
Heat Deflection Temperature at 1.8MPa (264 psi) (ºC)
100
Continuous allowable service temperature in air
100
Mechanical Properties
Property
Value
Tensile Strength (MPa)
66
Tensile Modulus of Elasticity (MPa)
3,100
Compressive stress at 1% nominal strain (MPa)
27
Compressive stress at 2% nominal strain (MPa)
45
Compressive stress at 5% nominal strain (MPa)
78
Flexural Strength (MPa)
Charpy Impact Notched (kJ/m²)
7.0
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
Compliant
European Food Approval
Compliant
NSF
Compliant
3A-SSI
Not compliant
Canada AG
USDA
Compliant
Flammability (UL Rating)
HB
Medical use
FOOD - FDA FOOD - EU FOOD - 3A-SSI FOOD - USDA
Miscellaneous Properties
Property
Value
Base Material
POM-C
Brand Family
Colors
White
Density (g/cm3)
1.43
Water Absorption after 24 hrs immersion in water (%)
