Lexan® 8B28 Polycarbonate Coil

The Lexan® 8B28 Polycarbonate Coil is one of our range of plastic films. With 23 thickness and size variations available, this polycarbonate film features high impact strength, optical clarity and electrical insulation properties. Potential applications for Lexan 8B28 include safety glazing, machine guards and electrical insulation. Our wide variety of thicknesses and sizes make this polycarbonate film suitable for prototyping and small scale production for industrial, scientific and commercial needs alike.

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Tolerance

Properties

Reference & Citations

each

Price

Action

1000044128

0.25mm

0.1m

1000044130

0.25mm

0.2m

1000044391

0.5mm

0.1m

1000044393

0.5mm

0.2m

$241.29each
5+ for $195.45ea
10+ for $178.56ea

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$261.77each
5+ for $212.04ea
10+ for $193.71ea

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$232.60each
5+ for $188.41ea
10+ for $172.13ea

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$253.58each
5+ for $205.40ea
10+ for $187.65ea

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Tolerances

Coil

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