Duratron™ CU60 PBI is the highest-performing engineering plastic available from Mitsubishi Chemical Group due to its superior mechanical properties, heat resistance and mechanical property retention over 205°C (400°F). This polybenzimidazole has better wear resistance and load-carrying capabilities at extreme temperatures than any other reinforced or unreinforced advanced engineering plastic. This makes this material highly attractive to semiconductor manufacturers for vacuum chamber applications. In addition, Duratron™ CU60 PBI is ideal for high-heat bushings, connectors, valve seats and probe tip lenses.
PROPERTIES
Highest mechanical properties of any plastic at temperatures over 205°C (400°F)
Market's best wear and load-carrying performance in extreme temperatures
High ionic purity, no outgassing except in water
Excellent ultrasonic transparency
Lowest coefficient of thermal expansion and highest compressive strength of all unfilled plastics
Thermal Properties
Property
Value
Heat Deflection Temperature at 1.8MPa (264 psi) (ºC)
425
Continuous allowable service temperature in air
310
Mechanical Properties
Property
Value
Tensile Strength (MPa)
130
Tensile Modulus of Elasticity (MPa)
6,000
Compressive stress at 1% nominal strain (MPa)
58
Compressive stress at 2% nominal strain (MPa)
118
Compressive stress at 5% nominal strain (MPa)
280
Flexural Strength (MPa)
160
Charpy Impact Notched (kJ/m²)
2.5
Chemical Properties
Property
Value
Hot Water / Steam
Limited
Acids, Weak
Limited
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)
28
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
PBI
Brand Family
Colors
Black
Density (g/cm3)
1.3
Water Absorption after 24 hrs immersion in water (%)
