Frequently Asked Questions
A: Here are the three third parties, they offer testing services, and we send our sample to them before
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Siloxanes & Silanes
MONOMERS · CYCLIC SILOXANES · SILAZANES · COUPLING AGENTS
Explore Lyson's range of silicone intermediates and functional silanes — monomers, cyclic siloxanes, silazanes, and silane coupling agents. Siloxane intermediates are produced directly from our parent company's synthesis facility; coupling agents and crosslinkers are sourced through our 30-year partner supply chain. Together they form the building blocks used by global manufacturers to formulate silicone fluids, elastomers, adhesives, sealants, coatings, and composites.
Key siloxane intermediates are fully REACH Registered for European market compliance. All products — including coupling agents and crosslinkers — ship with TDS, COA, and SDS documentation.
Packaging Options: Steel drums or Intermediate Bulk Containers (IBCs). European door-to-door DDP delivery available.
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Coupling Agents
Product page
Product page
KH-540 / 560 / 570
Silane Coupling Agents · Amino · Epoxy · Methacryloxy
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Coupling Agents
LYLC-99
Bis-Amino Silane · Dynasylan 1124 equivalent
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Key REACH-Registered Products
D4
Octamethylcyclotetrasiloxane
REACH Registered
D5
Decamethylcyclopentasiloxane
REACH Registered
HMDZ
Hexamethyldisilazane
REACH Registered
TMDSO
Tetramethyldisiloxane
REACH Registered
HMDSO
Hexamethyldisiloxane
REACH Registered
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HPTSO
Heptamethyltrisiloxane
REACH Registered
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Product Range
Product Categories
Three distinct families covering the full organosilicon intermediate spectrum
2.1 — Monomers
Foundational methyl chlorosilane precursors for controlling cross-linking density and viscosity profiles in silicone polymers
| Product Name | Code | CAS Number | REACH Status |
|---|---|---|---|
| Methyltrichlorosilane | M1 | 75-79-6 | Contact for Status |
| Dimethyldichlorosilane | M2 | 75-78-5 | Contact for Status |
| Trimethylchlorosilane | M3 | 75-77-4 | Contact for Status |
2.2 — Cyclic Siloxanes
Used in ring-opening polymerization (ROP) to produce high-molecular-weight elastomers and specialty silicone fluids
| Product Name | Code | CAS Number | REACH Status |
|---|---|---|---|
| Hexamethylcyclotrisiloxane | D3 | 541-05-9 | Contact for Status |
| Octamethylcyclotetrasiloxane | D4 | 556-67-2 | REACH Registered |
| Decamethylcyclopentasiloxane | D5 | 541-02-6 | REACH Registered |
| Dodecamethylcyclohexasiloxane | D6 | 540-97-6 | Contact for Status |
| Tetravinyl Tetramethyl Cyclotetrasiloxane | D4V | 2554-06-5 | Contact for Status |
2.3 — Functional Silazanes & Disiloxanes
Critical chain terminators and surface modification agents, isolated via precision "low boiler" distillation for exceptional purity
| Product Name | Code | CAS Number | REACH Status |
|---|---|---|---|
| Hexamethyldisilazane | HMDZ | 999-97-3 | REACH Registered |
| Tetramethyldisiloxane | TMDSO | 3277-26-7 | REACH Registered |
| Heptamethyltrisiloxane | HPTSO | 1873-88-7 | REACH Registered |
| Hexamethyldisiloxane | HMDSO | 107-46-0 | REACH Registered |
| Divinyl Tetramethyl Disiloxane | DVTMDSO | 2627-95-4 | Contact for Status |
2.4 — Silane Coupling Agents & Crosslinkers
Surface modifiers and silicone curing agents — KH-series and direct alternatives to Wacker, Evonik, Shin-Etsu, and Momentive products
Silane coupling agents form covalent bonds between inorganic substrates (glass, mineral fillers, metals) and organic polymers — boosting adhesion, water resistance, dispersion, and mechanical strength in coatings, adhesives, sealants, and composites. Crosslinkers cure silicone polymers into elastomers, sealants, and protective films. Lyson stocks the full KH-series plus drop-in equivalents to Wacker (Dynasylan), Evonik (Silquest), Shin-Etsu (KBM/KBE), Momentive, and Dow Z-series. TDS, COA, and SDS available on request.
| Product Name | Code | CAS Number | Alternative Brand |
|---|---|---|---|
| Amino Silanes | |||
| 3-Aminopropyltriethoxysilane (KH-550 / AMEO) | LYLC-443 | 919-30-2 | Dynasylan AMEO • A-1100 • KBE-903 |
| 3-Aminopropyltrimethoxysilane (KH-540 / AMMO) | LYLC-444 | 13822-56-5 | Dynasylan AMMO • A-1110 • KBM-903 |
| N-(2-aminoethyl)-3-aminopropyltrimethoxysilane (KH-792 / DAMO) | LYLC-150 | 1760-24-3 | A-1120 • KBM-603 • Z-6020 |
| Bis-(γ-trimethoxysilylpropyl)amine | LYLC-99 | 82985-35-1 | Dynasylan 1124 • A-1170 |
| Epoxy Silane | |||
| 3-Glycidoxypropyltrimethoxysilane (KH-560 / GLYMO) | LYLC-445 | 2530-83-8 | Dynasylan GLYMO • A-187 • KBM-403 |
| Methacryloxy / Vinyl Silanes | |||
| 3-Methacryloxypropyltriethoxysilane (KH-570) | LYLC-231 | 21142-29-0 | KBE-503 • Y-9936 |
| Vinyltrimethoxysilane (VTMO) | LSLC-156 | 2768-02-7 | A-171 • KBM-1003 |
| Alkyl Silanes | |||
| Triethoxyoctylsilane (OCTEO) | LYLC-509 | 2943-75-1 | Dynasylan OCTEO • Wacker BS 1316 |
| Methyltrimethoxysilane (MTMS) | LYLC-106 | 1185-55-3 | KBM-13 |
| Crosslinkers | |||
| Tetraethyl Orthosilicate (TEOS) | LYLC-496 | 78-10-4 | KBE-04 • Z-6697 |
| Hexamethyldisilazane (HMDZ) | LYLC-498 | 999-97-3 | — |
| Methyltri(methylethylketoxime)silane | LYLC-497 | 22984-54-9 | Z-9075 |
Featured Products
Most-requested grades with extended technical and application data
Amino Silane
KH-550 / AMEO
CODELYLC-443
CAS919-30-2
Properties
3-Aminopropyltriethoxysilane. The most widely used coupling agent worldwide. Ethoxy version offers lower toxicity and better shelf stability than its methoxy sibling.
Replaces
Dynasylan AMEO • Silquest A-1100 • KBE-903 • Z-6011 • GF93
Primary Applications
Glass fiber sizing • Mineral filler treatment (silica, ATH) • FRP composites • Adhesion promoter for paints, adhesives, sealants • Cathodic e-coat primers
Epoxy Silane
KH-560 / GLYMO
CODELYLC-445
CAS2530-83-8
Properties
3-Glycidoxypropyltrimethoxysilane. Epoxy-functional silane reactive with amines, hydroxyls, and carboxyls. Excellent thermal cure performance.
Replaces
Dynasylan GLYMO • Silquest A-187 • KBM-403 • Z-6040
Primary Applications
Epoxy adhesives & sealants • PCB encapsulation & laminates • Glass-reinforced epoxy composites • Powder coatings • PV module sealing
Methacryloxy Silane
KH-570
CODELYLC-231
CAS21142-29-0
Properties
3-Methacryloxypropyltriethoxysilane. Free-radical curable methacrylate-functional silane. Lower volatility than the methoxy version (KBM-503).
Replaces
KBE-503 • Y-9936 • methoxy version: A-174, Z-6030
Primary Applications
Acrylic emulsion polymers • UV-cured coatings & inks • Cable insulation crosslinking (silane-PE) • Dental composites • Optical fiber coatings
Amino Silane
KH-540 / AMMO
CODELYLC-444
CAS13822-56-5
Properties
3-Aminopropyltrimethoxysilane. Methoxy version of AMEO. Faster hydrolysis and higher reactivity for surface treatment work.
Replaces
Dynasylan AMMO • Silquest A-1110 • KBM-903 • Z-6610 • GF96
Primary Applications
Mineral surface treatment (CaCO₃, talc, ATH) • Cathodic electrocoating • Foundry sand binders • Optical fiber primers • Wire enamel adhesion
Diamino Silane
KH-792 / DAMO
CODELYLC-150
CAS1760-24-3
Properties
N-(2-aminoethyl)-3-aminopropyltrimethoxysilane. Diamino silane with two reactive amine groups — stronger adhesion and higher functional density than mono-amino types.
Replaces
Silquest A-1120 • KBM-603 • Z-6020 • Dynasylan DAMO-T (similar)
Primary Applications
Phenolic resin systems • Glass mat thermoplastics • Rubber-to-metal bonding • Anti-corrosion primers • Brake pad and friction binders
Crosslinker
MTMS
CODELYLC-106
CAS1185-55-3
Properties
Methyltrimethoxysilane. Trifunctional methoxysilane that hydrolyzes releasing methanol. Used as silicone crosslinker and surface modifier precursor.
Replaces
KBM-13 • Wacker MTMS
Primary Applications
RTV silicone rubber crosslinking • Moisture-curing coatings • Stone & masonry water repellent precursor • Hybrid sol-gel ceramic systems
Don't see your product?
Lyson supplies 100+ silane coupling agents and crosslinkers across amino, epoxy, vinyl, methacryloxy, mercapto, ureido, isocyanato, chloro, ketoxime, acetoxy, titanate, and tin catalyst chemistries. Contact us with your specific CAS number, brand equivalent, or specialty silane requirement — including waterborne, oligomeric, low-VOC, and REACH-registered grades.
Request a Quote →APPLICATIONS
Industrial Applications
Our siloxanes, silanes, and coupling agents serve precision manufacturing across six high-growth industries
Electronics & Semiconductors
- CVD precursors for dielectric coatings
- Surface passivation & hydrophobic treatment
- Photoresist stripping aids
- Encapsulant & conformal coating intermediates
New Energy & EV
- Silicon anode surface modification for Li-ion batteries
- PV module encapsulant raw materials
- Fuel cell membrane surface treatment
- Thermal interface material intermediates
Medical & Pharmaceutical
- Medical-grade silicone rubber synthesis
- Hydrophobic coating for vials & syringes
- Personal care silicone base materials
- Drug delivery encapsulation intermediates
Coatings & Paints
- Paint adhesion promoters (KH-550)
- UV-curable acrylic coatings (KH-570)
- Hybrid sol-gel & water-based systems (MTMS)
- VOC-compliant low-emission formulations
Adhesives, Sealants & Composites
- Epoxy adhesive coupling (KH-560)
- Glass fiber-reinforced composites
- Rubber-to-metal bonding (KH-792)
- Cable insulation crosslinking (silane-PE)
Construction & Surface Treatment
- Masonry water repellents (OCTEO)
- Mineral filler treatment (ATH, CaCO₃)
- Foundry sand binders
- Concrete & stone protective sealers
About Us
Lyson, established in 2018, is a subsidiary of a parent company that has been in business for over 30 years. The parent company also has subsidiaries in Tokyo and Frankfurt. This gives us access to a global network of silicone-based raw material suppliers and customers.
why Us?
At Lyson, we offer more than just export service. We offer value-added trade services that include:
- Free sourcing service until you are satisfied with the quality, quantity, cost, timing, and packaging of your order
- Up-to-date market insights and advice to help you make informed decisions and avoid price fluctuations
- Quality guarantee and testing before purchasing to ensure you get the best products for your needs
- Fast and accurate sourcing thanks to our 30 years of local supply chain network and experience
Contact Us
Call Us
Tel:+86 21 3363 2226
Lyson Chem-Materials Shanghai Company
sales@lysonchem-materials.com
Room 421, No. 62 – 421, Hongcao Road, Xuhui, Shanghai,
China 200233
Tel:+49 (0) 6102 8837308
GW United Chemicals GmbH
info@gwunitechem.com
Max-Holder-19, Frankfurt,
Germany
Tel:+81 3 3436 2520
GW Chemicals Nippon
info@gwchem.jp
東京都港区虎ノ門3丁目22番14号 エミタス虎ノ門ビル, “Isenburg” , “1201”
Japan
Tel:+1 347 9400534
GW United Chemicals USA Inc.
info@gwunitedchem.com
165 Broadway, 23rd Floor, New York, 10006
United States of America
Lyson Chem Product List
| PRODUCT | CAS No. |
|---|---|
| Dimethyl Silicone Fluid 0.65cst 1cs 1.5cst 2cst 3cst | 107-46-0, 107-51-7, 141-62-8, 141-63-9, 63148-62-9 |
| Dimethyl Silicone Fluid 20cst 50cst 100cst 350cst 500cst 1000cst | 63148-62-9 |
| Dimethyl Silicone Fluid 10000cst 12500cst 60000cst | 63148-62-9 |
| Hydroxy Silicone Fluid | 70131-67-8 |
| OH Polymer | 70131-67-8 |
| Vinyl Silicone Fluid | 63148-62-9 |
| Methyl Hydrogen Silicone Fluid | 63148-57-2 |
| Hydrogen-terminated Silicone Fluid | 70900-21-9 |
| Amino Silicone Fluid | 63148-62-0 |
| Methyl Phenyl Silicone Fluid | 63148-52-7, 63148-58-3 |
| Phenyl Vinyl Silicone Fluid | 225927-21-9 |
| Phenyl Hydrogen Silicone Fluid | 17875-55-7 |
| Methyl Fluoro Silicone Fluid | 63148-56-1 |
| Diffusion Pump Silicone Fluid | 3982-82-9, 3390-61-2 |
| Stearoyl Benzoyl Methane - SBM | 58446-52-9 |
| Hexamethyldisiloxane | HMDSO | 107-46-0 |
| heptamethyltrisiloxane | HPTSO | 1873-88-7 |
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