| Category | Polymer , Thermoset , Rubber or Thermoset Elastomer (TSE) |
| Manufacturer | Korea Kumho Petrochemical Co., Ltd. |
| Trade Name | KOSYN |
| Port | Shanghai port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
| Download PDF | KKPC KOSYN 1721 Styrene Butadiene Rubber.pdf |
| Price | EMAIL US sales@lookpolymers.com |
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 0.970 g/cc | 0.0350 lb/in³ | Not Compounded |
| Mooney Viscosity | 54 @Temperature 100 °C |
54 @Temperature 212 °F |
Raw; ML1+4 |
| 67 @Temperature 100 °C |
67 @Temperature 212 °F |
Compounded; ML1+4 |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Hardness, Shore A | 61 | 61 | Vulcanized |
| Tensile Strength, Ultimate | 23.7 MPa | 3440 psi | Vulcanized |
| Elongation at Break | 620 % | 620 % | Vulcanized |
| 300% Modulus | 0.0106 GPa | 1.54 ksi | Vulcanized |
| Rebound | 30 % | 30 % | ASTM Test, Vulcanized |
| Flex Crack Resistance | 15000 | 15000 | 145°C / 35 min., Press Vulcanization |
| Tear Strength | 43.1 kN/m | 246 pli | B-type, Vulcanized |
| Abrasion | 0.19 | 0.19 | De Mattia Flexometer: Cut Growth 2mm --> 15mm, Flexes |
| Compression Set | 50 % @Temperature 100 °C |
50 % @Temperature 212 °F |
70 hrs, 25% def, Vulcanized |