Images are for guidance only and might not represent the final product.
Formula: PES
Form: Disk
Material: Polyethersulfone (PES)
Commodity: Polymers
Color: Clear Amber
The PES Disk is a precision engineered product available in 30 variations for a comprehensive choice of different diameters and thicknesses. Made from polyethersulfone, it exhibits high heat resistance and mechanical strength. PES disks are used across scientific and industrial applications, including spacers, washers, and substrates requiring dimensional stability at elevated temperatures. Their superior chemical resistance also makes them suitable for equipment exposed to aggressive environments
Technical Data Sheet Safety Data Sheet Tolerance Properties
each

We are collecting your products, please wait!...

Shipping restrictions and charges
may apply for some hazardous materials.

Tolerances

Disk
Thickness ±20%

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

Can't find what you're looking for? For customized options

Other Customers Purchased
  1. Starting at $178.76

    each
    Discounts applied for volume purchases
    View Product
  2. Starting at $1,223.52

    each
    Discounts applied for volume purchases
    View Product
  3. Starting at $1,156.08

    each
    Discounts applied for volume purchases
    View Product