Silane Coupling Agents
26 products
3-Aminopropyltriethoxysilane (A-1100 / KH-550)
CAS 919-30-2
Primary amine group reacts directly with epoxy resins — ideal epoxy composite coupling agent
3-Aminopropyltrimethoxysilane (KH-540 / APTMS)
CAS 13822-56-5
Trimethoxy groups hydrolyze 3–5× faster than triethoxysilane KH-550 — ideal for waterborne systems
3-Chloropropyltrimethoxysilane
CAS 2530-87-2
Versatile synthetic intermediate — chloro group converts to amine, thiol, azide, or epoxide
3-Glycidoxypropyltrimethoxysilane (A-187 / KH-560)
CAS 2530-83-8
Glycidyl functional group is directly compatible with all epoxy curing chemistry
3-Isocyanatopropyltriethoxysilane
CAS 24801-88-5
Isocyanate group reacts directly with PU, polyurea, and hydroxyl-polymer matrices without catalyst
3-Mercaptopropyltrimethoxysilane (A-189)
CAS 4420-74-0
Mercapto (–SH) group reacts with sulfur-vulcanization systems in rubber composites
3-Methacryloxypropyltrimethoxysilane (A-174 / KH-570)
CAS 2530-85-0
Methacrylate group reacts with UPR, VER, acrylic, and UV-curable resin systems
3-Ureidopropyltriethoxysilane (A-1160)
CAS 23779-32-0
Ureido group provides hydrogen-bonding coupling to PA, PU, and polyester matrices
Bis(triethoxysilylpropyl)disulfide (Si-75 / TESPD)
CAS 56706-10-6
Improved scorch safety vs. Si-69 — 10–20°C higher safe mixing temperature
Bis(triethoxysilylpropyl)tetrasulfide (Si-69 / TESPT)
CAS 40372-72-3
Industry benchmark bifunctional silane for silica-filled tire tread rubber compounds
Dimethyldimethoxysilane (DMDMS)
CAS 1112-39-6
Difunctionality allows linear chain extension — primary tool for reducing RTV-1 sealant modulus
Isobutyltrimethoxysilane (iBTMOS / Dynasylan IBTMO type)
CAS 18395-30-7
Isobutyl chain delivers >105° water contact angle on treated mineral surfaces — better than MTMS, less whitening than C8/C16
Methyltrimethoxysilane (MTMS / Z-6070)
CAS 1185-55-3
Primary crosslinker for neutral-cure RTV-1 silicone sealants — no corrosive by-product (vs. acetoxy systems)
N-(2-Aminoethyl)-3-Aminopropyltrimethoxysilane (A-1120)
CAS 1760-24-3
Diamine functionality (primary + secondary amine) — higher crosslink density at interface
N-(2-Aminoethyl)-3-aminopropylmethyldimethoxysilane (KH-602)
CAS 3069-29-2
Methyl-substituted difunctional silane — does not crosslink silicone network, acts as chain extender and adhesion promoter
Octyltriethoxysilane (Surface Hydrophobization Agent)
CAS 2943-75-1
Non-reactive alkyl silane — provides hydrophobic surface coating, not polymer coupling
SMA-1000 Styrene-Maleic Anhydride Copolymer
CAS 9011-13-6
Reactive anhydride groups for covalent bonding to amine- and OH-functionalized surfaces
SMA-1440 Styrene-Maleic Anhydride Copolymer
CAS 9011-13-6
Reactive anhydride groups for covalent bonding to amine- and OH-functionalized surfaces
SMA-2000 Styrene-Maleic Anhydride Copolymer
CAS 9011-13-6
Reactive anhydride groups for covalent bonding to amine- and OH-functionalized surfaces
SMA-3000 Styrene-Maleic Anhydride Copolymer
CAS 9011-13-6
Reactive anhydride groups for covalent bonding to amine- and OH-functionalized surfaces
SMA-4000 Styrene-Maleic Anhydride Copolymer
CAS 9011-13-6
Reactive anhydride groups for covalent bonding to amine- and OH-functionalized surfaces
SMA-820 Styrene-Maleic Anhydride Copolymer
CAS 9011-13-6
Reactive anhydride groups for covalent bonding to amine- and OH-functionalized surfaces
Silane Coupling Agent Blend (Multi-Substrate)
Multi-mechanism coupling: amine + epoxy/vinyl chemistry combined in one product
Vinyltriethoxysilane (A-151 / KH-151)
CAS 78-08-0
Vinyl functional group copolymerizes with UPR and styrene via radical mechanism
Vinyltrimethoxysilane (A-171 / KH-171)
CAS 2768-02-7
Fast hydrolysis rate (5–10× faster than VTMS triethoxysilane) for aqueous systems
Vinyltris(2-methoxyethoxy)silane (A-172)
CAS 1067-53-4
Superior aqueous bath stability vs. A-151/A-171 — bath life 8–24 hours at 0.3% concentration