
Casilane HP-669 by Thomas Swan is a sulphur silane coupling agent. It acts as a chemical intermediate and crosslinking agent. It also acts as a vulcanizing agent and activator in the rubber industry due to the presence of four sulphur atoms in its structure.
- It enhances performance by incorporating fillers like silica, fiberglass, talc, mica, and clay, boosting filler–rubber interaction to increase abrasion resistance and overall durability.
- It is suitable for use in NR, IR, SBR, BR, NBR, and EPDM rubber compounds.
- It features poly-sulphidic alkyl structures that align with sulphur deoxidation rates, resisting oxidative degradation while improving heat resistance and crack fatigue performance.
- It reduces puncture risk, rolling resistance, fuel consumption, and carbon-dioxide emissions, supporting carbon reduction efforts and ensuring environmental compliance.
- It acts as a reinforcing agent, enhancing filler performance and significantly improving rubber’s abrasion resistance.
- Casilane HP-669 boosts cut and pressure resistance while reducing hysteresis loss and moisture absorption, thereby enhancing mechanical strength, adhesion, thermal aging resistance, modulus, and flex life.
- It strengthens the bond between substrates and adhesives or coatings, resulting in products that are more durable, reliable, and long-lasting.
- It enhances mechanical properties like tensile strength, modulus, and elongation, making materials tougher, more flexible, and resilient.
- It improves chemical resistance, increasing stability, consistency, and product lifespan.
- It is used in the manufacturing of tires, hoses, rollers, belts, cables, footwear, and molded rubber parts.
- Recommended dosage is 1.0-4.0 PHR.
- It has a shelf life of over 2 years.
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Casilane HP-669 properties
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