Vinyltriethoxysilane, alos known as A-151, NV-1107, KBE-1003 or GF-56 is a chemical compound with the formula C8H18O3Si. It is a colorless liquid that is soluble in organic solvents. Vinyltriethoxysilane is widely used as a coupling agent and adhesion promoter in various industries, including the production of plastics, rubber, and coatings.
As a coupling agent, vinyltriethoxysilane is used to improve the bond strength between organic materials and inorganic surfaces. It can react with hydroxyl groups on the surface of materials such as glass, metal, and minerals, forming strong covalent bonds. This enhances the adhesion and durability of coatings, adhesives, and sealants.
Vinyltriethoxysilane is also used as a crosslinking agent in the production of silicone polymers. It can react with other silane compounds or with polymer chains containing hydroxyl groups, resulting in the formation of a three-dimensional network structure. This improves the mechanical properties, heat resistance, and chemical resistance of the silicone polymers.
In addition, vinyltriethoxysilane is employed as a reactive intermediate in various organic synthesis reactions. Its vinyl group can undergo addition reactions with nucleophiles, such as amines or thiols, leading to the formation of new organic compounds.
Overall, vinyltriethoxysilane plays a crucial role in enhancing adhesion, promoting crosslinking, and enabling the synthesis of new organic compounds in various industries.
1. Coupling Agent: A-151 acts as a coupling agent, improving the bond strength between organic materials and inorganic surfaces. It forms strong covalent bonds with hydroxyl groups on surfaces such as glass, metal, and minerals, enhancing adhesion.
2. Adhesion Promoter: By enhancing the adhesion between different materials, vinyltriethoxysilane improves the durability and performance of coatings, adhesives, and sealants.
3. Crosslinking Agent: A-151 can be used as a crosslinking agent in the production of silicone polymers. It reacts with other silane compounds or polymer chains containing hydroxyl groups, forming a three-dimensional network structure that improves mechanical properties, heat resistance, and chemical resistance.
4. Versatile Reactivity: The vinyl group in vinyltriethoxysilane is highly reactive and can undergo addition reactions with nucleophiles such as amines or thiols. This reactivity enables the synthesis of new organic compounds and makes vinyltriethoxysilane a valuable intermediate in organic synthesis.
5. Solubility: A-151 is soluble in organic solvents, making it easy to incorporate into various formulations and processes.
6. Stability: A-151 is a stable compound under normal conditions, allowing for long-term storage and use without significant degradation.
1. Adhesives and Sealants
Vinyltriethoxysilane is used as an adhesion promoter in the formulation of adhesives and sealants. It improves the bonding strength between different substrates, such as glass, metal, and plastics, enhancing the durability and performance of the adhesive.
2. Coatings
Vinyltriethoxysilane is utilized as a coupling agent in coatings to improve adhesion to substrates. It is commonly used in coatings for glass, metal, ceramics, and other surfaces, providing better resistance to moisture, chemicals, and weathering.
3. Surface Modification
Vinyltriethoxysilane is employed for surface modification of materials like glass fibers, fillers, and pigments. It enhances the compatibility between the filler and the polymer matrix, resulting in improved mechanical properties and dispersion.
4. Polymer Crosslinking
Vinyltriethoxysilane acts as a crosslinking agent in the production of silicone polymers. It reacts with other silane compounds or polymer chains containing hydroxyl groups, forming a three-dimensional network structure that enhances the mechanical strength, heat resistance, and chemical resistance of the polymer.
5. Organic Synthesis
The reactivity of vinyltriethoxysilane's vinyl group allows it to be used as a versatile intermediate in organic synthesis. It can undergo addition reactions with nucleophiles such as amines or thiols, enabling the synthesis of various organic compounds.
6. Fiber Treatment
Vinyltriethoxysilane is used for treating glass fibers to improve their compatibility with polymer matrices in composite materials. This treatment enhances the adhesion between the fibers and the polymer, resulting in stronger and more durable composites.
| Appearance |
Colorless liquid |
| Purity |
≥98.0% |
| Density at 25ºC |
0.905g/ml |
| Refractive index (20ºC) |
1.397 |
| Cas No. |
78-08-0 |
| Molecular Formula |
C8H18O3Si |
| Molecular Weight |
190.31 |
| Flash point |
34ºC |
| Boiling point at 760mmHg |
161ºC |
Storage: Store in a cool, well-ventilated warehouse. Keep away from open flames and heat sources. Store separately from oxidizing agents, alkalis, and other incompatible substances. Use explosion-proof lighting and ventilation facilities.
Package: 200kg/drum or as per your particular request.
Beijing Entrepreneur Science & Trading Co., Ltd. was established in the year 2001. We are focused on import and export business of high-quality specialty chemicals. Since its establishment, relying on diligent efforts, spirit of enterprising and professional services, the company has established extensive cooperation with world-famous chemical manufacturers and gained a good reputation in China chemical industry.
We have stable distribution cooperation with world leading suppliers from America, Europe, Japan and Taiwan. We are distributors of Ames Advantage Material, Novamet, Lanxess, Momentive, Potters, Rhodia, Roquette, Oerlikon Metco, Inovyn, KJ Chemical, Tokuyama, Mitsubishi Chemical, Chang Chun Group, etc.
Our products selling in China include Conductive Powder, Thermal Conductive Powder, Microwave Absorbing Powder, Acrylamide Functional Monomer and Special UV Monomer, Special Epoxy Resin, Mercaptan Curing Agent, Silane, Fumed Silica and Precipitated Silica, PVC Paste Resin, PVA, Carbon Black, Modified Starch, Photocatalyst, Formaldehyde Capture agent, Root Blocking Agent, Platinum Catalyst, Vinyl Silicone Oil, Surfactant, etc.
In 2014, the company entered the chemical export business. Based on our understanding of China chemical market, we select most qualified suppliers. We are able to source raw materials directly from factories. Most of our partners are the largest factory in China with over 20 years history. They have huge annual outputs, and hold ISO9001, ISO14001, GMP, KOSHER, HALAL, FDA, GSP, etc. certificates.
Our export products include Conductive Powder, Thermal Conductive Powder, Plant Extract, Inorganic Powder, Plasticizer, PVC Paste Resin, Silane, Flavors and Fragrances, Salen Catalysts and Ligands, Organic Intermediates, Pharmaceutical Intermediates.
We are proud to serve industries such as coating, ink, sealant, industrial, cosmetics, conductive powder, thermal conductive powder, pharmaceutical, flavor & fragrance, aroma, as well as many others.
We will support our customers in a continuous way in the following:
1. Timely feedback to inquiry within 24 hours
2. Pre-sales consultancy
3. Supply samples
4. Competitive price
5. Good packaging
6. Timely delivery
7. Small order is available
8. Good after sales services
9. Provide TDS, COA, commercial invoice, packing list and certificate of origin. Special requirements also could be discussed and met.
Can I request samples?
Yes, absolutely! We offer free samples of specified quantities. You only need to cover the freight charges.
Which documents are provided?
We provide essential documents such as Certificate of Analysis (COA), Technical Data Sheet (TDS), Material Safety Data Sheet (MSDS), and more upon request.
What is your Minimum Order Quantity (MOQ)?
Typically, our MOQ is one standard package. However, we understand the importance of testing before committing to a mass order, so we offer free samples for your evaluation.
How do you ensure the quality of your products?
We prioritize quality assurance through several measures:
1. Expert Staff: Our team comprises professionals with extensive experience in chemical products or related fields. They undergo comprehensive training before providing any quotations.
2. Sample Availability: We offer free samples or pre-shipment samples for new collaborations, ensuring that our commercial products match the specifications provided to customers.
3. Third-Party Inspection: Upon request, we can arrange Third-Party Inspections, such as SGS, to further validate the quality of our products before shipping.
How do I make payments?
Once you receive the Proforma Invoice (PI) along with our product specifications, you can proceed with payment. We accept various payment methods including Telegraphic Transfer (T/T), Letter of Credit (LC), and more.
What is your after-sales service like?
At Beijing Entrepreneur Science & Trading Co., Ltd., we prioritize fostering long-term relationships with all our customers. For every order, we ensure transparency and commitment by signing a legally binding sales contract. Should you have any doubts or concerns regarding our products or services, please do not hesitate to contact us. Your satisfaction and trust are our top priorities.
Can I use my own label or packaging?
Absolutely. If required, we can use labels or packaging according to your specifications and preferences. Your branding and packaging needs are important to us, and we'll ensure they are met to your satisfaction.
Audited Supplier 
){kind=link}