Semitron™ ESd 225 are a line of POM shapes characterized by their excellent wear resistance, thermal performance and ability to quickly dissipate static charges. Due to these properties, this grade is ideal for several applications throughout the semiconductor and electronics industry, such as hard disk drive fixtures, high speed electronic printing components, jigs and fixtures for static control and wafer processing components.
PROPERTIES
Electrostatic dissipative
Excellent wear resistance
High heat resistance
Thermal Properties
Property
Value
Heat Deflection Temperature at 1.8MPa (264 psi) (ºC)
Continuous allowable service temperature in air
90
Flammability (UL Rating)
HB
Mechanical Properties
Property
Value
Tensile Strength (MPa)
38
Tensile Modulus of Elasticity (MPa)
1,500
Compressive stress at 1% nominal strain (MPa)
14
Compressive stress at 2% nominal strain (MPa)
25
Compressive stress at 5% nominal strain (MPa)
38
Flexural Strength (MPa)
50
Charpy Impact Notched (kJ/m²)
8.0
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)
Industry Specific Usage (FOOD)
Property
Value
FDA
Not compliant
EU
Not compliant
USDA
Not compliant
3A-SSI
Not compliant
VMX materials
Not compliant
Industry Specific Usage (MEDICAL)
Property
Value
ISO 10993-5 and USP <87>
Not compliant
ISO 10993-10 Sensitization
Not compliant
ISO 10993-10 (Intracutaneous Reactivity) and USP <88>
Not compliant
ISO 10993-11 and USP <88>
Not compliant
USP <88> (Implant)
Not compliant
ISO-10993-4
Not compliant
USP <661>
Not compliant
USP Class VI
Not compliant
AFO - Animal Free Origin
Not compliant
Industry Specific Usage (RECYCLED)
Property
Value
Statera™ portfolio
Not compliant
Industry Specific Usage (NUCLEAR)
Property
Value
Shielding Portfolio
Not compliant
PMUC certified
Not compliant
Industry Specific Usage (SEMICON)
Property
Value
ESd materials
Compliant
Conductive materials
Not compliant
Miscellaneous Properties
Property
Value
Base Material
POM-C
Brand Family
Colors
Beige
Density (g/cm3)
1.33
Water Absorption after 24 hrs immersion in water (%)
