Casilane Silanes
Technical Expertise. Smarter prices.
High-performance silane coupling agents that enhance filler dispersion and adhesion in composites, delivering improved strength, durability, and processing efficiency across tyres, rubber, plastics, and coatings. Casilane™ is Thomas Swan’s range of organofunctional silanes that form a chemical bridge between inorganic fillers (silica, glass, minerals, metal oxides) and organic systems (polymers, coatings, adhesives, sealants). This improved interface gives cleaner dispersion, better mechanical properties, and more reliable processing.
Casilane™ products are supported by our technical team to help you select the right solution for your formulation, and are offered at competitive pricing thanks to efficient sourcing and production.
Proven performance
Engineered for broad use across plastics, composites, coatings, adhesives and sealants where adhesion, mechanical strength, moisture resistance and durability are critical.
Processing efficiency
Improved filler wetting and dispersion can reduce mixing energy, give more uniform compounds, and minimise defects.
Cost-efficient solutions
Premium silane performance at competitive pricing, enabled by efficient sourcing and production.
Technical expertise
Direct access to our silane specialists to match the right chemistry to your polymer/filler system and end-use conditions.
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Casilane Silanes
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Enhanced filler–polymer bonding
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Improved mechanical strength and durability
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Better filler dispersion and wetting
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Reduced mixing energy and improved processing
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Consistent performance supported by technical formulation guidance
What are Casilane™ Silanes?
Casilane™ is Thomas Swan’s range of organofunctional silane coupling agents designed to improve adhesion, filler dispersion, and durability in polymers, composites, coatings, adhesives, and sealants.
How do silanes work in polymer systems?
They act as a chemical bridge between inorganic fillers (silica, glass, minerals, metal oxides) and organic polymers. This improves interfacial bonding, resulting in better mechanical strength, moisture resistance, and processing efficiency.
What benefits do Casilane Silanes provide?
Enhanced filler–polymer bonding for stronger composites
Improved mechanical strength and durability
Better filler dispersion and wetting, reducing defects
Lower mixing energy, improving processing efficiency
Consistent performance, supported by technical guidance
Additional Information
| Product | Physical Form | Key Features | Applications |
|---|---|---|---|
| Casilane HP-174 | Black pellets | Vinyl silane tackifier & coupling agent; boosts adhesion, wet/dry strength, electrical and mechanical performance | Coatings, adhesives, polyester–fiberglass composites, crosslinked coatings, thermoplastics, rubber, cables, wires |
| Casilane HP-669 | Pale-yellow liquid | Sulphur silane; enhances filler–rubber interaction, abrasion resistance, heat/chemical stability, and vulcanisation efficiency | Tyres, silica-filled rubber compounds, hoses, belts, general rubber goods |
| Casilane HP-669C | Black pellets | Multifunctional sulphur silane + carbon black; reinforcing agent; improves filler–rubber bonding, dispersion, abrasion resistance, rolling resistance | Tyres, hoses, belts, rollers, cables, footwear, moulded rubber components |
| Casilane HP-1120 | Colourless/pale-yellow liquid | Amino silane; enhances coupling with inorganic fillers, improves bonding, wet strength, flexibility, gloss, and antistatic behaviour | Glass-reinforced plastics, coatings & paints, adhesives, silicone formulations, resin sands |
