PBR 1220 — Grade 07
Polybutadiene (PBR 1220)
High-cis polybutadiene rubber engineered for excellent abrasion resistance, resilience and dynamic performance in tyre and industrial rubber applications.
Overview
PBR 1220 is a high-cis polybutadiene rubber offering excellent elasticity, abrasion resistance, low heat build-up and resistance to dynamic stress. Its high cis content and mechanical properties make it particularly suitable for tyres and technical rubber products. PBR 1220 can also be blended with natural rubber (NR) and styrene-butadiene rubber (SBR) to achieve the required balance of durability, resilience and processing performance.
Applications
Packaging & delivery
Standard manufacturer packaging suitable for international shipment. Configuration, quantities and delivery terms on request.
Typical specifications
| Parameter | Method | Value |
|---|---|---|
| Raw Mooney Viscosity | ASTM D1646 | 41 – 49 MU |
| Cis Content | Internal Method | ≥ 96 wt% |
| Volatile Matter Content | ASTM D5668 | ≤ 0.75 wt% |
| Ash Content | ASTM D1416 | ≤ 0.30 wt% |
| Compound Mooney Viscosity | ASTM D1646 | ≤ 77 MU |
| Tensile Strength (35 min) | ASTM D412 | ≥ 150 kgf/cm² |
| Elongation at Break (35 min) | ASTM D412 | ≥ 440% |
| 300% Modulus @ 145°C — 25 min cure | ASTM D412 | 68 – 108 kg/cm² |
| 300% Modulus @ 145°C — 35 min cure | ASTM D412 | 74 – 114 kg/cm² |
| 300% Modulus @ 145°C — 50 min cure | ASTM D412 | 74 – 114 kg/cm² |
Typical product specifications. Final specifications and batch-specific results are confirmed against the applicable Certificate of Analysis (CoA).
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