Product features

PUR polyurethane

Chemical composition: polyether polyol + TDI based cast polyurethane elastomers

Natural

product family features

Polyurethanes are extremely flexible, elastic plastics, which are close to elastomers (rubber, silicone products) in their flexibility. In addition, they are highly resistant to abrasion and chemicals. A wide range of hardnesses, colours and densities are available. The Shore A scale is commonly used to determine hardness, with Sh A between 60 and 95 typically available. They are also available in rod, tube and plate formats.PUR

Some important features

  • Elongation at break: 250-700%
  • Application temperature: up to approx. 80°C
  • Excellent wear resistance, e.g. when abraded by small particles

Main areas of application

Silents, leaf springs, buffers, rollers, contact surfaces/coatings. The harder PUR semi-finished products (such as Ebaboard) are sought-after materials for models, patterns and moulds due to their excellent machinability, dimensional stability and aesthetic appearance.

Machining technology

Chipping (turning, milling, drilling, sawing): traditional metalworking tools, in some cases woodworking tools - carbon steel, high speed steel, carbide, diamond - can be used with a sharp finish, but especially for softer polyurethanes it is recommended to cool the workpiece before machining.

Gluing: feasible.

Available formats

  • PUR rod
  • PUR sheet
  • PUR pipe

Technical data

Investigation
Unit of measurement
Value
Base properties
Basic colour
-
-
natural
Density
DIN EN ISO 1183
g/cm^3
1,1 | 1,1 | 1,1 | 1,1
Mechanical properties
Rupture resistance
DIN 53515
N/mm
65 | 70 | 85 | 90
Tensile strength
DIN EN ISO 527-1,2
MPa
25 | 30 | 35 | 36
Elongation at break
DIN EN ISO 527-2
%
700 | 400 | 400 | 250
Flexibility
DIN 53512
%
70 | 45 | 40 | 35
100% Tension to stretch
DIN 53504
N/mm2
3,0 | 7,5 | 12,5 | 35,0
300% Tension to stretch
DIN 53504
N/mm2
4,4 | 14,5 | 23,4 | -
Shore hardness
DIN 53505
ShA / ShD
80A ± 5 | 90A ± 5 | 95A / 50D ± 5 | 70D ± 5
Wear loss
DIN 53516
mm3
48 | 50 | 65 | 65
Thermal properties
No value to display.
Chemical resistance
No value to display.
Electrical properties
No value to display.
Optical properties
No value to display.
Sterilizability
No value to display.
Wear properties
No value to display.

(*) legend:

A - applicable
B - limited application
C - not applicable

Tables
Thickness
Colour
Table size (mm x mm)
Please contact us for the current availability of each size.