Silane Coupling Agent Selector: Amino, Epoxy, Vinyl, Methacryloxy, Mercapto
Silane coupling agents create a molecular bridge between inorganic substrates (glass, silica, mineral fillers) and organic polymers. Selecting the right functional group is critical.
| Spec | ZEMSIL CS-550 | ZEMSIL CS-540 | ZEMSIL CS-602 | ZEMSIL CS-171 | ZEMSIL CS-910 | ZEMSIL CS-580 |
|---|---|---|---|---|---|---|
| Functional group | Amino (–NH₂) | Diamino | Epoxy / glycidoxy | Vinyl | Methacryloxy | Mercapto (–SH) |
| Abbreviation | APTES | AEAPTMS | GPS (GPTMS) | VTMS | MAPTMS | MPTMS |
| KH equivalent | KH-550 | KH-792 | KH-560 | KH-171 | KH-570 | KH-580 |
| Compatible resins | Epoxy, polyamide, nylon | Epoxy, PU (dual amine) | Epoxy, PU, inorganic coating | PE, PP, EVA (radiation cure) | Acrylic, UV-cure, methacrylate | Sulfur-cure rubber, polysulfide |
| Flash point | ~63 °C | ~72 °C | ~74 °C | 13 °C ⚠ | ~72 °C | ~60 °C |
How to choose
- ▸Epoxy systems: CS-550 (mono-amino) or CS-540 (diamino for enhanced adhesion).
- ▸Polyurethane and coating systems: CS-602 (glycidoxy/epoxy-functional).
- ▸Radiation-cure or polyolefin: CS-171 (vinyl, low flash point — handle with care).
- ▸UV/acrylic thermosets: CS-910 (methacryloxy).
- ▸Sulfur-cure rubber: CS-580 (mercapto). For silica-reinforced tires, consider CS-69 (bis-TESPT) instead.
Products compared
ZEMSIL CS-550
3-Aminopropyltriethoxysilane
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ZEMSIL CS-540
N-(2-Aminoethyl)-3-aminopropyltrimethoxysilane
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ZEMSIL CS-602
3-Glycidoxypropyltrimethoxysilane (GPTMS)
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ZEMSIL CS-171
Vinyltrimethoxysilane (VTMS)
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ZEMSIL CS-910
3-Methacryloxypropyltrimethoxysilane (MAPTMS)
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ZEMSIL CS-580
3-Mercaptopropyltrimethoxysilane
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