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ABN 25626459974

Polycarbonate

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Polycarbonate has

a density of 1.20 g/cm3
a use range from −100 °C to +135 °C
a melting point around 250 °C
a refractive index equal to 1.585 ± 0.001
a light transmission index equal to 90% ± 1%
poor weathering in an ultraviolet (UV) light environment

Properties

Excellent impact resistance
250 times stronger than glass
Very good optical properties
Ability to be cold formed in thinner gauges
Moderate chemical and scratch resistance
Self-extinguishing
Excellent acoustic properties

Applications

Safety and vandal resistant glazing, machine guards, sight glasses, safety visors
Transparent instrument components, electrical components.

Safeguard

ROD-SHEET-TUBE
Clear
Premium quality UV stabilized
Clear, high impact engineering and glazing sheet
Excellent for use in safety glazing and guarding

Safeguard Hard Coated

Clear
Highly engineered see-through sheet with high abrasion and UV resistance

PC 1000

Natural (clear/translucent)
Industrial engineering grade non-optical quality and non-UV stabilized

Polycarbonates

are a particular group of thermoplastic polyesters. They are easily worked, molded, and thermoformed; as such, these plastics are very widely used in modern manufacturing. Their interesting features (temperature resistance, impact resistance and optical properties) positions them between commodity plastics and engineering plastics.

Typical sheet/film applications are::

Industry: machined or formed, cases, machine glazing, riot shields, visors, instrument panels
Advertisement: Signs, displays, poster protection
Building : dome lights, flat or curved glazing, sound walls,

Interaction with other chemicals

will damage	require caution	are considered safe
Acetone Acrylonitrile Ammonia Amyl acetate Benzene Bromine Butyl acetate Sodium hydroxide Chloroform Dimethylformamide Concentrated Hydrochloric acid Concentrated Hydrofluoric acid Iodine Methanol Methyl ethyl ketone Styrene Tetrachloroethylene Toluol Concentrated Sulfuric acid Xylene	alkali bleaches such as Sodium hypochlorite Cyclohexanone Diesel oil Formic acid Gasoline Glycerine Heating oil Jet fuel Concentrated Perchloric acid Sulfur dioxide Turpentine	Acetic acid Ammonium chloride Antimony trichloride Borax in H2O Butane Calcium chloride Calcium hypochlorite Carbon dioxide Carbon monoxide Citric acid 10% Copper sulphate Ethyl alcohol 95% Ethylene glycol Formaldehyde 10% Hydrochloric acid 20% Hydrofluoric acid 5% Mercury Methane Oxygen Ozone Sulphur Urea Water(1)

Polycarbonate
Physical Properties
Density (ρ)	1200-1220 kg/m³
Abbe number (V)	34.0
Refractive index (n)	1.584-6
Flammability	V0-V2
Limiting oxygen index	25-27%
Water absorption - Equilibrium(ASTM)	0.16-0.35%
Water absorption - over 24 hours	0.1%
Radiation resistance	Fair
Ultraviolet (1-380nm) resistance	Fair
Mechanical Properties
Young's modulus (E)	2-2.4 GPa
Tensile strength (σ_t)	55-75 MPa
Compressive strength (σ_c)	>80 MPa
Elongation (ε) @ break	80-150%
Poisson's ratio (ν)	0.37
Hardness - Rockwell	M70
Izod impact strength	600-850 J/m
Notch test	20-35 kJ/m²
Abrasive resistance - ASTM D1044	10-15 mg/1000 cycles
Coefficient of friction (μ)	0.31
Thermal Properties
Melting temperature (T_m)	267°C*
Glass transition temperature(T_g)	150°C
Heat Deflection Temperature - 10 k N (Vicat B)^<1>	145°C
Heat Deflection Temperature - 0.45 M Pa	140°C
Heat Deflection Temperature - 1.8 M Pa	128-138°C
Upper working temperature	115-130°C
Lower working temperature	-135°C
Linear thermal expansion coefficient (α)	65-70 × 10^-6/K
Specific heat capacity (c)	1.2-1.3 k J/kg·K
Thermal conductivity (k) @ 23°C	0.19-0.22 W/(m·K)
Heat transfer coefficient (h)	0.21 W/(m²·K)
Electrical Properties
Dielectric constant (ε_r) @ 1 M Hz	2.9
Permittivity (ε) @ 1 M Hz	2.568 x10^-11 F/m
Relative Permeability (μ_r) @ 1 M Hz	0.866(2)
Permeability (μ) @ 1 M Hz	1.089(2) μ N/A²
Dielectric strength	15-67 k V/mm
Dissipation factor @ 1 M Hz	0.01
Surface Resistivity	10¹⁵ Ω/sq
Volume Resistivity (ρ)	10¹²-10¹⁴ Ω·m
Chemical Resistance
Acids - concentrated	Poor
Acids - dilute	Good
Alcohols	Good
Alkalis	Good-Poor
Aromatic hydrocarbons	Poor
Greases & Oils	Good-Fair
Halogenated Hydrocarbons	Good-Poor
Halogens	Poor
Ketones	Poor

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