Duratron™ DU7000 PI hot compression-molded shapes possess superior electrical and thermal insulation properties and outstanding mechanical performance qualities for applications that demand higher temperature resistance. In addition to these characteristics, Duratron™ DU7000 PI offers great chemical resistance, high strength and toughness and outstanding dimensional stability. For these reasons, Duratron™ DU7000 PI is an ideal solution for insulators, high-temperature fixtures, valve seats, gaskets and seals. In comparison to Duratron™ D7000, this ultra-grade PI has improved thermal-oxidative stability and better dimensional stability.
PROPERTIES
Excellent electrical and thermal insulation
Great chemical resistance
High strength and toughness at high temperatures
Candidate for metal replacement: lightweight & lubrication-free
Improved dimensional and thermal-oxidative stability
Thermal Properties
Property
Value
Heat Deflection Temperature at 1.8MPa (264 psi) (ºC)
300
Continuous allowable service temperature in air
260
Mechanical Properties
Property
Value
Tensile Strength (MPa)
140
Tensile Modulus of Elasticity (MPa)
4,600
Compressive stress at 1% nominal strain (MPa)
45
Compressive stress at 2% nominal strain (MPa)
90
Compressive stress at 5% nominal strain (MPa)
170
Flexural Strength (MPa)
190
Charpy Impact Notched (kJ/m²)
3
Chemical Properties
Property
Value
Hot Water / Steam
Limited
Acids, Weak
Acceptable
Acids, Strong (pH 1-3)
Not acceptable
Alkalies, Weak
Not acceptable
Alkalies, Strong (pH 11-14)
Not acceptable
Hydrocarbons - Aromatic
Not acceptable
Hydrocarbons - Aliphatic
Not acceptable
Ketones, Esters
Not acceptable
Chlorinated Solvents
Not acceptable
Alcohols
Not 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
PI
Brand Family
Colors
Yellow
Density (g/cm3)
1.41
Water Absorption after 24 hrs immersion in water (%)
