Semitron™ CMP XL20 PAI was developed from a proprietary polyamide-base resin and offers wear life more than 20 times that of standard PPS in all CMP chemistry environments. This material has the best combination of wear life and mechanical strength and stiffness, ideal for the most demanding applications and in extreme process environments.
PROPERTIES
High strength and stiffness promotes fewer edge defects and better uniformity
Good chemical and creep resistance
Excellent wear life
Dimensionally stable
Outperforms PPS up to 20x in most processes
Thermal Properties
Property
Value
Heat Deflection Temperature at 1.8MPa (264 psi) (ºC)
Continuous allowable service temperature in air
260
Mechanical Properties
Property
Value
Tensile Strength (MPa)
Tensile Modulus of Elasticity (MPa)
Compressive stress at 1% nominal strain (MPa)
Compressive stress at 2% nominal strain (MPa)
Compressive stress at 5% nominal strain (MPa)
Flexural Strength (MPa)
Charpy Impact Notched (kJ/m²)
Chemical Properties
Property
Value
Hot Water / Steam
Limited
Acids, Weak
Acceptable
Acids, Strong (pH 1-3)
Limited
Alkalies, Weak
Limited
Alkalies, Strong (pH 11-14)
Not acceptable
Hydrocarbons - Aromatic
Acceptable
Hydrocarbons - Aliphatic
Acceptable
Ketones, Esters
Acceptable
Chlorinated Solvents
Acceptable
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
Not compliant
3A-SSI
Not compliant
Canada AG
USDA
Not compliant
Flammability (UL Rating)
V-0
Medical use
Miscellaneous Properties
Property
Value
Base Material
PAI
Brand Family
Colors
Green
Density (g/cm3)
Water Absorption after 24 hrs immersion in water (%)
