Mineral solutions for rubber compounding
Sree Sai Mineral Industries supplies finely processed kaolin clay that functions as a reinforcing filler in rubber compounding — from tyres and retreading compounds to footwear, hoses and industrial rubber products.
Our kaolin grades deliver the tensile strength, tear resistance and processing consistency that rubber compounders demand, backed by an in-house quality laboratory and a Certificate of Analysis with every batch.
Where our kaolin is used
Tyres & Retreading
- Passenger & Commercial Tyres
- Tyre Retreading Compounds
- Tyre Sidewall Compounds
- Tread Rubber
Footwear & Industrial Rubber
- Footwear Soling
- Rubber Mats & Flooring
- Moulded Rubber Goods
- Rubber Gaskets & Seals
Hoses & Belting
- Rubber Hoses
- Conveyor Belting
- Automotive Seals
- Industrial Belting
The role our kaolin plays in your rubber compound
Tensile Strength
Reinforcing action improves tensile strength across compound formulations.
Tear & Abrasion Resistance
Uniform particle distribution improves tear strength and abrasion resistance.
Better Processability
Optimised particle morphology ensures smooth mixing, extrusion and moulding.
Low-Impurity Consistency
Batch-to-batch uniformity verified in our in-house QC lab.
Sree Sai RubberTech Reinforcing Kaolin
Sree Sai RubberTech is a finely processed kaolin designed to improve reinforcement, dimensional stability, abrasion resistance and processing efficiency in rubber compounds.
Chemical Composition (Typical)
| Parameter | Typical Value |
|---|---|
| Silicon Dioxide (SiO₂) | 46–48% |
| Aluminium Oxide (Al₂O₃) | 36–39% |
| Iron Oxide (Fe₂O₃) | ≤ 0.50% |
| Loss on Ignition (LOI) | 13–15% |
| Moisture | < 1.0% |
Physical Properties (Typical)
| Property | Typical Value |
|---|---|
| Brightness | 84–88% |
| Moisture | < 1.0% |
| Median Particle Size (D50) | 3–5 µm |
| +325 Mesh Residue | < 0.5% |
Product Advantages
Five grades — from footwear to premium rubber components
| Product Grade | Brightness (%) | D50 (µm) | Moisture (%) | Primary Application |
|---|---|---|---|---|
| SS-RB 100 | 82–84 | 6–7 | < 1.0 | Footwear |
| SS-RB 200 | 84–85 | 5–6 | < 1.0 | Rubber Hoses |
| SS-RB 300 | 85–86 | 4–5 | < 0.8 | Conveyor Belting |
| SS-RB 400 | 86–87 | 3–4 | < 0.8 | Industrial Rubber Goods |
| SS-RB 500 | 87–88 | 2–3 | < 0.5 | Tyres & Premium Rubber Components |
* Typical values provided for guidance only. Custom grades can be developed to meet specific process and product requirements.
