CR
Chloroprene rubber
CR is a chloroprene-based synthetic elastomer.
The material has good wear properties and weather resistance. Due to its chlorine content, CR is flame-retardant.
Applications:
- Outdoor conveyor belts
- Window sealing profiles
- Seals for refrigeration systems
- V-belts
The material has good wear properties and weather resistance. Due to its chlorine content, CR is flame-retardant.
Applications:
- Outdoor conveyor belts
- Window sealing profiles
- Seals for refrigeration systems
- V-belts
| Short designation | CR |
| Brand name | Neoprene® Bayprene® |
| Chemical description | Chloroprene rubber |
| Mechanical properties | |
| Hardness range [Shore A/D] | 40 – 90 |
| Wear resistance | Good – very good |
| Tensile strength [MPa] | 10 – 25 |
| Physical properties | |
| Density [g/cm³] | 1.4 |
| Application temperatures | |
| Temperature range, short-term [°C] | -30 – 120 |
| Temperature range, continuous [°C] | -20 – 100 |
| Other properties | |
| Flammability according to UL 94 | V-2 |
| Chemical resistance | |
| Mineral grease and oils | + |
| Petrol | - |
| Weak/strong acids | o/-- |
| Weak/strong alkalis | ++/+ |
| Perchloroethylene | -- |
| Trichloroethylene | -- |
| Acetone | - |
| Alcohols | + |
| Brake fluid | o |
| Hydrolysis resistance (hot water) | + |
| Weather/UV radiation | + |
++ very good / + good / o satisfactory / - moderate (significant change to properties) / -- unsuitable
This information is for reference only; we do not assume any liability for its accuracy. The properties of elastomer materials are highly dependent on their specific composition and their additives.