China Vinyltriethoxysilane Company & Product

Premium Organosilicone Coupling Agents, Crosslinkers & Hydrocarbon Resins for Global Industrial Applications

The Industrial Significance of Vinyltriethoxysilane in Global Markets

Vinyltriethoxysilane (VTES), represented by the chemical formula CH2=CHSi(OC2H5)3, is a critical organosilicon compound widely recognized for its dual-reactivity characteristics. Functioning as a high-performance crosslinking agent and adhesion promoter, VTES possesses a highly reactive vinyl group paired with three hydrolyzable ethoxy groups. This unique configuration enables the bridging of inorganic materials (such as glass fibers, silica, and mineral fillers) and organic polymers (including thermoplastics, elastomers, and thermosetting resins).

Globally, the commercial significance of Vinyltriethoxysilane has intensified due to the rising demand for moisture-cured crosslinked polyethylene (XLPE) in medium-to-high voltage power cables and underfloor piping systems. Because the hydrolysis of VTES yields ethanol as a byproduct rather than methanol (which is released by its methoxy-based analogue, VTMS), it is highly preferred in regions with strict environmental regulations like REACH in the EU. This shift positions VTES as a crucial component for developing low-VOC and ecologically conscious polymer composites.

Chemical Refinery Production Line

About Shandong Boctok Chemical Co.

A global leader in silicones, hydrocarbon resins, and agricultural intermediates.

Factory Detail 1 Factory Detail 2 Factory Detail 3 Factory Detail 4

Founded in 2012, Shandong Boctok Chemical Co. has developed into an integrated powerhouse for domestic and overseas marketing of premium chemical materials, reaching an annual sales revenue of US$280 million in 2023. Under our specialized BOCTOK brand, we have established long-term strategic supply relationships across crucial global regions, with a strong emphasis on the Eastern European and Central Asian markets.

Our core industrial capabilities are rooted in high-purity organosilicones. We operate a state-of-the-art facility located in the Bohai Industrial Park, Shouguang City, Shandong Province. Backed by an investment of US$65 million, this modern plant runs 6 fully automated DCS production lines with an annual output capacity of 30,000 tons of silane coupling agents and crosslinkers.

To ensure consistent quality, our manufacturing practices adhere to the ISO9001 quality management standards, backed by computerized DCS remote control systems and integrated safety instrumented systems (SIS). We operate comprehensive waste gas containment structures and advanced wastewater treatment systems to meet stringent environmental standards.

2012
Established Year
$280M
2023 Annual Sales
30K Tons
Annual Silane Output
$65M
Recent Plant Investment

China Factory Efficiency & Global Advantage

Strategic structural elements that secure Boctok's competitive edge in the global chemical value chain.

Supply Chain Integration

By maintaining strategic alliances with national raw material leaders such as SINOPEC and PetroChina, Boctok secures direct and reliable access to essential precursors. This minimizes upstream price fluctuations and ensures continuous supply.

DCS & SIS Automation

Our Shouguang factory utilizes modern Distributed Control Systems (DCS) to manage polymerization and distillation loops. This ensures high batch-to-batch purity and consistent technical characteristics, crucial for performance-critical industries.

Stringent Environmental Compliance

With dedicated multi-stage chemical scrubbers and activated carbon filtration, our systems achieve near-zero gas emissions. This ensures compliance with global standards, guaranteeing a reliable and uninterrupted supply chain for international buyers.

Localized Applications & Industrial Scenarios

Explore how Vinyltriethoxysilane and related organosilicones act as critical performance enhancers across diverse markets.

Pesticides - Fertilizers

Pesticides & Fertilizers

Pesticides - Melons and Fruits

Agricultural Crops

Pesticides - Flora

Flora Management

Pesticides - agricultural crops

Pesticide Intermediates

Pesticides - Vegetables

Vegetable Cultivation

Petroleum resins - coatings

Petroleum Resin Coatings

Silicones - cable materials

Cables & Castings

Silicone textiles

Textile Finishing

Silicone adhesives

Silicone Adhesives

Organic silicone is a daily chemical

Cosmetic Ingredients

Industrial Synergy Across Core Businesses

Three main product categories serving advanced polymer formulation, agriculture, and infrastructure fields.

1. Organosilicones & Silanes

We supply 12 key series of silane coupling agents and crosslinkers: aminosilanes, methacrylate silanes, epoxy silanes, vinyl silanes, mercaptosilanes, alkyl silanes, ethyl silicates, chlorosilanes, silane isocyanates, phenyl silanes, ureidosilanes, and serosilanes.

Additionally, we supply performance fluids and elastomers, including high-hydrogen silicone oil, dimethicone, vinyl silicone oil, polyphenylmethyldimethylsiloxane, methyl MQ resin, vinyl VMQ resin, and room-temperature vulcanized (RTV) methyl silicone rubbers.

2. Hydrocarbon / Petroleum Resins

As a key investor in domestic hydrocarbon resin production across Zibo, Fushun, and Nanjing, Boctok provides premium C9 hydrogenated resins, C5 hydrocarbon resins, C5 modified C9 resins, dicyclopentadiene (DCPD), and methyl cyclopentadiene dimer. These serve global hot-melt adhesive and coating manufacturers, including several Fortune 500 companies.

3. Agrochemical Formulations

Boctok produces essential active intermediates and raw formulation materials designed for crop protection. This includes advanced fungicides, insecticides, seed treatments, herbicides, and plant growth regulators designed to improve yields and crop quality.

Rigorous Quality Verification & Global Standards

To maintain high E-E-A-T (Experience, Expertise, Authoritativeness, and Trustworthiness) standards, our operations are optimized to verify product purity and performance at every stage of the manufacturing process.

Our quality control laboratories utilize Gas Chromatography (GC) and Fourier-Transform Infrared Spectroscopy (FTIR) to ensure each batch of Vinyltriethoxysilane exceeds the 98.5% purity threshold. We maintain moisture levels below 0.05% to prevent premature hydrolysis during shipping and storage.

With our optimized logistics framework, we offer customizable packaging solutions ranging from 190kg steel drums and 950kg IBC containers to bulk ISO tanks, ensuring safe and reliable delivery to global industrial facilities.

Our Technical Commitments:

  • Chemical ID: CAS 78-08-0 | High-purity monomeric composition.
  • Strict QA: Every batch is accompanied by a detailed COA (Certificate of Analysis) and RoHS compliance certification.
  • Long-Term Stability: Specially lined steel drums under dry nitrogen blanket packaging.
  • 24/7 Global Support: Direct communication with technical support teams for specialized material formulations.

Technical Q&A: Vinyltriethoxysilane Fundamentals

Expert insights on the chemical mechanisms, application methods, and handling requirements of VTES.

How does Vinyltriethoxysilane improve performance in moisture-crosslinked cables (XLPE)?
In moisture-crosslinked polyethylene (XLPE) production, VTES is grafted onto the polyethylene backbone using an organic peroxide initiator. Once the grafting is complete, the polymer can be formed into shapes like cable jackets or pipes. When exposed to heat and moisture, the ethoxy groups on the grafted silane hydrolyze, forming silanol groups. These silanol groups then condense to form stable siloxane bonds (Si-O-Si), creating a robust three-dimensional crosslinked network. This crosslinked structure increases the polymer's thermal deformation resistance, tensile strength, and chemical durability.
What is the advantage of using Vinyltriethoxysilane (VTES) over Vinyltrimethoxysilane (VTMS)?
The primary advantage is safety and environmental compliance. During the crosslinking process, VTES releases ethanol as a byproduct of its hydrolysis reaction, whereas VTMS releases methanol. Methanol is highly toxic, volatile, and subject to strict regulatory limits in closed manufacturing settings. Choosing VTES over VTMS helps companies reduce hazardous air pollutants (HAPs) and meet strict occupational health standards. Additionally, the hydrolysis rate of ethoxysilanes is naturally slower than that of methoxysilanes, allowing for longer gel times and more controlled processing of polymer batches.
Can VTES be utilized for surface treating inorganic mineral fillers?
Yes. VTES is highly effective for the surface treatment of silica, kaolin clay, talc, and aluminum trihydroxide (ATH). When applied in dilute aqueous or solvent solutions, the ethoxy groups hydrolyze to form silanols, which react with the hydroxyl (-OH) groups on the mineral filler surfaces. This process bonds the hydrophobic vinyl function to the mineral filler particle. These treated fillers disperse more uniformly in polymer matrices, which improves mechanical properties, reduces viscosity, and lowers moisture uptake in finished composites.
What storage precautions are necessary for Vinyltriethoxysilane shipments?
Because VTES hydrolyzes in the presence of moisture, it must be stored in air-tight, moisture-proof containers. Containers are typically purged with dry nitrogen gas before sealing. Storage areas should remain cool, dry, and well-ventilated, isolated from heat sources, sparks, open flames, and strong oxidizers or acidic/alkaline compounds that could catalyze polymerization. If stored correctly in original unopened containers, VTES typically maintains a shelf life of 12 months.