Precision-engineered rubber produced with specified quality standards, ensuring consistency and reliability. Utilized in tire manufacturing, industrial applications, and specialty products
Technical Specified Rubber (TSR) also known as Block Rubber refers to a type of processed natural rubber that are manufactured according to defined technical specifications or standards. TSR is produced through a series of controlled processes, starting from the collection of latex or Field Coagulum. The latex or field Coagulum undergoes various processing steps including cleaning, blending, size reduction, drying, and packaging. These processes ensure that the rubber meets the desired quality standards.
TSR typically exhibits consistent physical and chemical properties, making it suitable for various industrial applications where specific performance characteristics are required. These applications may include tire manufacturing, automotive parts, industrial goods, footwear, and other products where high-quality rubber is essential.
The technical specifications for TSR may vary depending on the intended use and the standards set by organisations such as the International Organization for Standardization (ISO), American Society for Testing and Materials (ASTM) or national standards bodies. Grading of TSR involves rigorous testing for parameters such as dirt, ash content, volatile matter, nitrogen content, plasticity, and other properties to ensure compliance with the specified standards.
TSR is marketed in tightly wrapped polyethylene bales to prevent contamination during handling, transportation and storage. The standardized sizes and compact packaging allow for easy handling and make transportation convenient and cost-effective.
Different Grades of TSR and its Various application:
| Field Latex Grade | Coagulam |
|---|---|
| TSR-CV | TSR5 |
| TSR-L | TSR-10 |
| TSR CV50 | TSR-20 |
| TSR CV60 | TSR 10CV |
| TSR 20CV |
is produced from high-quality field latex. The rubber is carefully processed to maintain a stabilised viscosity within a narrow, predefined range. This result in a rubber that is softer than conventional grades, providing distinct advantages in various industrial applications. Notably, it exhibits minimal mill shrinkage, ensuring precise dimensional integrity during manufacturing while its enhanced green strength facilitates improved handling and processing capabilities. Furthermore, by eliminating the pre-mastication process and reducing reject rates. TSR CV streamlines production cycle, resulting in cost savings. Its non-scorching properties enable the use of higher curing temperatures without an increased risk of defects, promoting a faster and more efficient production process.,
TSR CV rubber comes in various viscosity options, with CV50 and CV60 being the most common.
Applications: This material finds application in various high-quality products, such as mechanical mounts for engines and machinery, buffers for railways, bearings for bridges, suspension systems for vehicles, and automotive components including large truck tire treads, covers for conveyor belts, cushion gum for retreading, windscreen wiper blades, masking tapes, brake assembly units, injection-molded products like rubber/metal bonded components, low-density sponges, tee gum cushion compounds, springs, industrial rolls, and inner tubes.
Specifications
TSR CV50 TSR CV60
Produced from good-quality field latex, this product is distinguished by its light colour and cleanliness. TSR L undergoes grading based on specific technical criteria and is also classified according to the Lovibond scale, specifically distinguishing itself with the lightest coloration among the TSR categories.
Moreover, it boasts outstanding heat aging resistance. TSR-L exhibits excellent vulcanizate properties, having high tensile strength, modulus and elongation at break for both black and non-black mix. Higher hardness products can be obtained through appropriate compounding.
Applications: Suitable for producing light-coloured and transparent items such as feeding bottle teats, hot water bottles, large industrial rollers, paper and printing industry. It is also utilized in the manufacture of rubber bands, tapes, adhesive solutions, swim fins and caps, sport footwear, textiles, surgical and pharmaceutical products, bicycle tubes, tennis ball, cable sheaths, chewing gum, and gaskets.
Specification
TSR L TSR 5L TSR 3L
Produced from fresh coagulum and/ or from unsmoked sheets, Ribbed smoked sheets and Air-dried sheets. This grade exhibits low mill shrinkage, ensuring dimensional stability during processing. Additionally, TSR-5 demonstrates excellent tackiness, alongside robust strength properties, making it a reliable choice for various applications
Application: It is widely used to manufacture extruded products, small components within passenger vehicles, resilient bushings/mountings, sealing rings, cushioning gum, brake seals, bridge bearings, ebonite battery plates, separators, adhesives, plant linings, and more
Produced from field grade coagulum or unsmoked sheets. It possesses good technological properties similar to those of RSS-2 and RSS-3, with distinct advantages over RSS due to lower viscosity a crucial attribute for specific manufacturing processes and applications. With a slightly accelerated breakdown, TSR 10 facilitates a smoother mixing process, ultimately enhancing production efficiency. Unlike RSS which is visually graded, TSR 10 adheres to technical specifications.
Application: Used mostly for manufacturing of tyres, inner tubes, cushion gum stocks, injection-moulded joint rings, raincoat proofings, microcellular sheets, upholstery and packaging materials, conveyor belts, and footwear production.
A significant volume grade of technically specified natural rubber, primarily originates from field coagulum, along with lower grades of RSS and/or unsmoked sheets. It boasts remarkable processing characteristics, streamlining production and manufacturing operations with ease. Known for its robust physical attributes, it enhances the durability and resilience of resulting products. With its reduced viscosity, TSR 20 becomes particularly advantageous in manufacturing processes that prioritize fluidity and moldability. It’s easier mixing characteristics further optimize production procedures, enhancing both efficiency and output quality.
Application: Used mostly for manufacturing of tyres, cushion gum stock, bicycle tyres, raincoat proofings, micro-cellular sheet for upholstery and packing, conveyor belts, foot wear and various other general products.
TSR 10CV, or Technically Specified Rubber with Controlled Viscosity, is produced from field-grade coagulum and/or unsmoked sheets. Its defining feature is its Mooney Viscosity, consistently held within a range of approximately 60(+7,- 5). TSR 10CV exhibit a lower dirt content. This rubber variant offers commendable technological attributes and facilitates easy mixing, resulting in a quicker breakdown during compounding processes. Used in the manufacturing of Tyres, inner-tubes, conveyor belts, Footwear, automotive.
TSR 20CV, or Technically Specified Rubber with Controlled Viscosity, is produced from field-grade coagulum and/or unsmoked sheets. Its defining feature is its Mooney Viscosity, consistently held within a range of approximately 65(+7,- 5). TSR 20 CV contains a higher dirt content compared to TSR 10CV. This rubber variant offers commendable technological attributes and facilitates easy mixing, resulting in a quicker breakdown during compounding processes. Used in the manufacturing of Tyres, inner-tubes, conveyor belts, Footwear, automotive.