PES Granules

Formula: PES

Form: Granule

Material: Polyethersulfone (PES)

Commodity: Polymers

Nominal Granule Size: 3mm

Molecular Weight: 58,000 g/mol

Viscosity: Medium Viscosity

Melt Volume Rate: 35 (360°C/10 Kg), cc/10min

Colour: Clear Amber

PES Granules are an advanced engineering plastic available in 15 different weight options. Made from a polyethersulfone material, they offer a combination of high heat resistance, toughness and chemical resistance. These properties make PES Granules suitable for injection molding into parts for applications like automotive components, electrical insulators and medical devices. The range of granules we offer allows you to select the optimal formulation for your specific application.

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Technical Data Sheet Safety Data Sheet Tolerance Properties

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Material Properties for Polymers

Chemical Resistance

Element	Value
Acids - concentrated	Good-Poor
Acids - dilute	Good
Alcohols	Good
Alkalis	Good
Aromatic hydrocarbons	Good
Greases and Oils	Good-Fair
Halogenated Hydrocarbons	Good
Halogens	Fair-Poor
Ketones	Good

Electrical Properties

Element	Value
Dielectric constant @1MHz	3.7
Dissipation factor @ 1MHz	0.003
Dielectric strength( kV mm⁻¹ )	16
Volume resistivity( Ohmcm )	10¹⁷

Physical Properties

Element	Value
Flammability	V-0 @ 0.4mm
Radiation resistance	Good-Fair
Refractive index	1.65
Resistance to Ultra-violet	Fair
Limiting oxygen index( % )	34-41
Water absorption - equilibrium( % )	2.2
Water absorption - over 24 hours( % )	0.4-1
Density( gcm⁻³ )	1.37

Mechanical Properties

Element	Value
Hardness - Rockwell	M88
Poisson's ratio	0.4
Elongation at break( % )	40-80
Tensile modulus( GPa )	2.4-2.6
Izod impact strength( J m⁻¹ )	85
Abrasive resistance - ASTM D1044( mg/1000 cycles )	6
Tensile strength( MPa )	70-95

Thermal Properties

Element	Value
Heat-deflection temperature - 0.45MPa( C )	260
Heat-deflection temperature - 1.8MPa( C )	203
Lower working temperature( C )	-110
Upper working temperature( C )	180-220
Thermal conductivity( W m⁻¹ K⁻¹ )	0.13-0.18@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	55

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PES Granules

Material Properties for Polymers