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Lexan® 8B35 Polycarbonate Film

Grade: Lexan® 8B35
Formula: PC
Form: Foil
Material: Polycarbonate
CAS Number: 25766-59-0
Commodity: Polymers
Thickness: 0.125mm
Surface Finish: Velvet / Matte
Transparency: Transparent
Lexan® 8B35 Polycarbonate films is a thin polycarbonate film with high optical clarity and impact resistance. It is well suited to applications such as safety glazing, machine guards and shatter-resistant windows. ALexan polycarbonate film comes in 8 variations to meet the needs of diverse applications in optics, electronics, medical devices and transportation. Its durability, flexibility and ease of fabrication make it an ideal material for prototypes, small production runs and R&D.
Technical Data Sheet Safety Data Sheet Tolerance Properties
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Tolerances

Foil
Thickness ±20%

Material Properties for Polymers

Physical Properties
Element Value
Abbe number 34
Flammability V0-V2
Radiation resistance Fair
Refractive index 1.584-6
Resistance to Ultra-violet Fair
Limiting oxygen index( % ) 25-27
Water absorption - equilibrium( % ) 0.35
Water absorption - over 24 hours( % ) 0.1
Density( gcm⁻³ ) 1.2
Chemical Resistance
Element Value
Acids - concentrated Good
Acids - dilute Good
Alcohols Good
Alkalis Good-Poor
Aromatic hydrocarbons Poor
Greases and Oils Good-Fair
Halogenated Hydrocarbons Good-Poor
Halogens Poor
Ketones Poor
Mechanical Properties
Element Value
Coefficient of friction 0.31
Hardness - Rockwell M70
Poisson's ratio 0.37
Elongation at break( % ) 100-150
Tensile modulus( GPa ) 2.3-2.4
Izod impact strength( J m⁻¹ ) 600-850
Abrasive resistance - ASTM D1044( mg/1000 cycles ) Oct-15
Tensile strength( MPa ) 55-75
Electrical Properties
Element Value
Dielectric constant @1MHz 2.9
Dissipation factor @ 1MHz 0.01
Dielectric strength( kV mm⁻¹ ) 15-67
Surface resistivity( Ohm/sq ) 10¹⁵
Volume resistivity( Ohmcm ) 10¹⁴-10¹⁶
Thermal Properties
Element Value
Heat-deflection temperature - 0.45MPa( C ) 140
Heat-deflection temperature - 1.8MPa( C ) 128-138
Lower working temperature( C ) -135
Upper working temperature( C ) 115-130
Specific heat( J K⁻¹ kg⁻¹ ) 1200
Thermal conductivity( W m⁻¹ K⁻¹ ) 0.19-0.22@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 66-70
Pultrusions
Element Value
Compressive strength( MPa ) >80

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