TSR CV 50 Latex Grade Natural Rubber
Technically Specified Rubber CV 50 (TSR CV 50) is derived from high-quality field latex, undergoing a production process to ensure a stabilized viscosity within a narrow range. This results in a rubber that is characteristically softer than conventional grades, providing distinct advantages in various industrial applications.
Aligned with international ISO standards, TSR CV 50 maintains consistency across global markets. Each rubber-producing nation has developed its own TSR standards to align with these international benchmarks; Thailand, Indonesia, and Malaysia utilize the STR, SIR, and SMR designations respectively.
Features of TSR CV 50:
- Dimensional Stability: TSR CV 50 exhibits reduced mill shrinkage, crucial for maintaining precise dimensions and form during manufacturing processes.
- Enhanced Green Strength: This rubber grade displays increased inherent strength prior to curing, facilitating improved handling and processing capabilities.
- Cost-Effective Production: The elimination of the premastication process and a reduction in reject rates contribute to a more efficient production cycle, resulting in cost savings.
- Resilience to Scorching: TSR CV 50’s non-scorch characteristics allow for higher curing temperatures without an increased risk of defects, promoting a quicker and more efficient production process.
Applications of TSR CV 50:
- Automotive and Machinery Components: With its robust properties, TSR CV 50 is suitable for manufacturing various automotive components, ensuring durability and reliable performance.
- Industrial Applications: The rubber is well-suited for heavy-duty applications such as industrial rolls and conveyor belt covers, due to its strength and resistance.
- Rubber Goods and Accessories: TSR CV 50 can be utilized in the production of diverse rubber products, including windshield wiper blades, masking tapes, and rubber/metal bonded components.
- Extruded Products and Chemical Resistant Linings: The rubber’s uniform texture and low mill shrinkage make it a preferred choice for extruded products, while its resistance characteristics are ideal for linings in environments exposed to chemicals and physical abrasion.
To understand the differences and find possible latex grade alternatives, one might consider examining other grades like TSR CV 60 and TSR L.
TSR CV 50 Specifications
| Characteristic (TSR CV50) | Indonesia (SIR 3CV50) | Vietnam (SVR CV50) | Malaysia (SMR CV50) | Thailand (STR 5CV 50) |
|---|---|---|---|---|
| Dirt content on 44u aperture, max %wt | 0.03 | 0.02 | 0.02 | 0.04 |
| Ash content, max %wt | 0.60 | 0.50 | 0.40 | 0.50 |
| Nitrogen, max % wt | 0.60 | 0.60 | 0.60 | 0.60 |
| Volatile matter, max %wt | 0.60 | 0.80 | 0.80 | 0.80 |
| Wallace rapid plasticity (Po), min | 30 | - | - | - |
| Plasticity retention index (PRI), min % | 60 | 60 | 60 | 60 |
| Mooney Viscosity ML(1'+4') 100 C | 50 +5, -5 | 50 +5, -5 | 50 +5, -5 | 50 +7, -5 |
