| Clwyd reference |
PU |
| ASTM classification |
PU |
| Typical applications |
- High hydraulic/high-tress/wear applications
- Coatings
- Adhesives
- Print rollers
- Bumpers
- Couplers
|
| Advantages |
- Excellent physical strength
- Excellent tear and abrasion attributes
|
| Disadvantages |
- Poor high temperature resistance
- Not suitable for hot water/steam applications or ketones, concentrated acids, hydrocarbons or esters
|
|
| Available hardness range (Shore A) |
25 - 85 |
| Upper continuous service temp. |
150°C |
| Min. temp. for sealing applications |
-50°C |
| Minimum non-brittle temp. |
-80°C |
| Tensile strength (up to) |
30 MPa |
| Elongation at break (up to) |
600% |
|
| Price Bracket |
Low |
| ASTM 1 Oil |
Excellent |
| ASTM 2 Oil |
Good |
| ASTM 3 Oil |
Good |
| Kerosene |
Excellent |
| Liquid B |
Average |
| Liquid 101 |
Good |
| Phosphate ester |
None |
| Ketone |
None |
| Toluene |
None |
| Iso-octane |
Good |
| Methanol |
None |
| Acid (weak) |
None |
| Acid (strong) |
None |
| Base (weak) |
None |
| Base (strong) |
None |
| Hydrogen sulphide |
None |
| Steam |
None |
| Ozone |
Excellent |
| Radiation |
Average |
