Explore our leading chemical catalog, including premium silane coupling agents, high-efficiency crosslinkers, and specialized resin solutions manufactured under ISO 9001 controls.
Founded in 2012, Shandong Boctok Chemical Co. has grown to become a globally trusted partner in organosilicone technology, high-purity petroleum resins, and performance agrochemicals. Acting as the core marketing and sales node for Boctok™ domestic and international business segments, the company achieved an outstanding annual sales volume of US$280 million in 2023. Over the decade, our dedicated focus has established the BOCTOK brand as a premiere service provider, particularly specializing in the Russian market and extending services to global electronic industries.
Our organosilicone product line covers twelve distinct series of silane coupling agents and crosslinkers. These premium products feature specialized compositions including aminosilanes, methacrylate silanes, epoxy silanes, vinyl silanes, mercaptosilanes, alkyl silanes, ethyl silicate, chlorosilanes, silane isocyanates, phenyl silanes, ureidosilanes, and serosilanes. Further, our expertise in polymeric chemistry allows us to deliver high-quality silicon oils (high-hydrogen silicone oil, dimethicone, vinyl silicone oil, polyphenylmethyldimethylsiloxane, phenyl silicone oil, silanol silicone oil, OH polymer, and alkoxy silicone oil), alongside custom methyl MQ resins, vinyl VMQ resins, room-temperature vulcanized methyl silicone rubber, 110 methyl vinyl silicone rubber, and 120 methyl phenyl rubber.
Beyond our organosilicone portfolio, Boctok operates robust divisions in upstream hydrocarbons and downstream agrochemical formulations.
Our Tier II core business is petroleum resins. To guarantee chemical consistency and pricing stability, we have invested directly in a key hydrocarbon resin manufacturer in China. Boctok currently manages three operational hydrocarbon resin factories situated in key industrial zones: Zibo, Fushun, and Nanjing. Operating near national petrochemical hubs allows us to secure reliable and abundant raw materials from SINOPEC and PetroChina. Leveraging our modern processing facilities and decades of distribution experience, our hydrocarbon resins (including C9 hydrogenated resins, C5 hydrocarbon resins, C5 modified C9 hydrocarbon resins, C9 hydrocarbon resins, dicyclopentadiene, and methyl cyclopentadiene dimer) are trusted by many Fortune 500 companies worldwide.
Further demonstrating our synthetic versatility, Boctok actively manufactures high-quality intermediates and raw materials for the agricultural sector. This includes premium chemical bases used to formulate insecticides, fungicides, seed treatments, herbicides, and plant growth regulators designed to maximize crop yield and resilience globally.
An expert-level analysis of high-purity siloxanes, addition-cure mechanics, and structural advantages in high-density electronics encapsulation.
Standard liquid silicone rubbers (LSR) contain trace quantities of volatile materials, cyclic siloxanes (D4-D10), and catalyst residues. In microelectronic and semiconductor assemblies, these volatile cyclic siloxanes present a critical hazard. Under electrical arcs or elevated temperatures, outgassed volatile silicones undergo decomposition, forming an insulating silica layer on electrical contacts, causing contact failures. Furthermore, trace ionic contaminants (such as sodium, potassium, and chloride ions) must be strictly maintained below 5 ppm to prevent localized galvanic corrosion and electrical leakage across high-density circuit pathways.
As a leading China Electronic Grade Liquid Silicone Rubber Manufacturer, Boctok employs specialized thin-film molecular distillation to strip low-molecular-weight siloxanes down to ultra-low thresholds. This processes volatile condensable materials (CVCM) to values below 0.1%, matching strict aerospace and cleanroom operational standards.
In electronic applications, the selection of the crosslinking system is crucial. Condensation-curing silicones emit volatile by-products (such as alcohols or acetic acids) during the curing phase, causing internal shrinkage and metal corrosion. Electronic Grade LSR operates on a platinum-catalyzed addition curing mechanism (hydrosilylation). The reaction proceeds through the addition of silicon-hydride (Si-H) groups on the crosslinker to vinyl-functionalized polymers (Si-CH=CH2) under active platinum complexes:
Boctok Chemical
≡Si-H + CH2=CH-Si≡ → ≡Si-CH2-CH2-Si≡ (No volatile by-products)
This addition reaction ensures zero shrinkage, fast curing cycles under heat, and excellent depth of cure—making it the ideal compound choice for potting delicate sensors, high-frequency transmitters, and optoelectronic modules.
Our tailored liquid silicone rubbers provide key physical and chemical characteristics vital for modern high-reliability engineering:
Exceeding 20 kV/mm, providing exceptional high-voltage isolation for power modules and electric vehicle (EV) busbars.
Formulated with high-purity alumina or boron nitride fillers to facilitate rapid heat dissipation away from processors.
Retaining structural elasticity and shock dampening capabilities from cryogenic -60°C up to 250°C continuous.
How Boctok integrates regional chemical clusters, vast raw material access, and massive infrastructure to deliver unmatched value.
Our new state-of-the-art facility in Bohai Industrial Park, Shouguang City, Shandong Province, significantly expands our chemical value chain. This facility is equipped with 6 fully automatic DCS lines with an annual capacity of 30,000 tons of silane coupling agents.
Our plants implement the Safety Instrumented System (SIS) and Distributed Control Systems (DCS). This ensures safe chemical processing, precise temperature thresholds, and complete batch-to-batch repeatability for global customers.
Complying with modern green initiatives, our facilities feature integrated waste gas scrubbers, regenerative thermal oxidizers (RTO), and onsite wastewater purification plants, yielding lower environmental footprints.
Providing high-performance chemical solutions, custom formulating capabilities, and immediate logistics support.
Every silicone elastomer batch undergoes gas chromatography, volatile testing, and dielectric breakdown testing to guarantee absolute compliance before shipment.
Advanced high-capacity reactors allow us to scale production efficiently to support mass customization for international projects and industrial runs.
Our experienced chemical engineers and logistics coordinators are available 24 hours a day to handle technical inquiries and regulatory compliance steps.
Integrated supply chain networks from Qingdao and major ports guarantee safe packaging, rapid Customs clearance, and prompt shipping to global destinations.
Connecting customized silicone rubbers and resins to cross-industry technical systems.
Custom chemical solutions optimized to resolve unique environmental and regional production challenges.
Synthesis pathways utilizing organosilicon crosslinkers and high-reactivity silane coupling agents to lock structural matrices in high-yield agrochemical compounds.
Using ultra-purified phenyl silicone oils and low-odor cosmetic grade fluids to improve tactile spreadability, hydrophobic protection, and gloss indices.
Incorporating C5 and C9 petroleum resins as robust tackifiers in hot-melt pressure-sensitive formulations, providing exceptional thermal stability.
Integrating organofunctional silanes into natural and synthetic rubbers to optimize silica dispersion, decreasing rolling resistance and physical wear.
Coating polymers modified with hydrophobic methyl-MQ resins and silicone fluids to resist chemical corrosion and UV deterioration in marine environments.
Coupling minerals to thermoplastic chains with customized aminosilanes to enhance tensile properties, melt flow index, and structural integrity.
Organosilicone superspreaders that significantly lower aqueous surface tension, enhancing systemic absorption on waxy leaf layers.
Formulated with exuding silicone fluids to reduce surface friction coefficient, ideal for dynamic automotive gaskets and weatherstripping seals.
Emulsified high-viscosity silicone fluids designed to control froth in severe industrial wastewater plants and processing media.
Water-soluble potassium methyl siliconate protecting porous construction panels from water absorption and structural efflorescence.
Highly stable dielectric heat-transfer fluids providing protection against shear breakdown inside transformers and machinery.
Potting materials resisting ozone degradation, thermal shock, and hydraulic fluids in demanding under-the-hood microelectronic casings.
High-tear strength RTV-2 addition cure rubbers that capture minute details, widely utilized for precision prototyping and model duplication.
Dielectric gels guarding delicate integrated circuits against dust, chemical pollution, mechanical vibration, and structural load.
Providing high-modulus weatherproofing sealants that accommodate joint movements in glass facades and high-rise curtain walls.
Neutral cure formulations providing adhesion to concrete, aluminum, masonry, and coated metals without staining substrates.
Silicone intermediate additives which modify organic binders to improve overall heat resistance, weatherability, and hardness curves.
Utilizing organofunctional silanes to establish molecular primer coats, increasing adhesion and anti-corrosive performance under wet conditions.
Crosslinking agents optimized for XLPE electrical cable formulations, ensuring high thermomechanical stability and breakdown resistance.
Reactive silanes used as architectural building blocks to synthesize and modification-cast specialized hybrid polyester and epoxy compounds.
Structural waterproofing silanes designed to impregnate natural stones, reinforcing concrete channels, and treating exterior brickwork.
Methacrylate silanes acting as coupling agents in fiberglass wind turbine blades, increasing resistance to wind fatigue and moisture cracking.
Highly purified addition-curing liquid silicone rubbers complying with medical-grade biocompatibility standards, ideal for cleanroom extrusion.
Amino-functional silicone micro-emulsions providing textiles with superior softness, washing endurance, and drape properties.
Silanes utilized to surface-treat silica, kaolin, and calcium carbonate fillers to lower viscosity and improve bonding in polymer matrix compounds.
Specialized structured silicone prepolymers used as structural components to develop advanced high-performance sealants.
Aligning raw materials, production systems, and environmental compliance with international frameworks.
Navigating global regulatory compliance is essential for tier-one electronics manufacturing. Boctok products align with standard international testing and reporting frameworks:
To reduce carbon footprints, Boctok's newly constructed chemical plant utilizes advanced recovery loops for hydrochloric acid, minimizing chemical effluents. Additionally, our processing centers incorporate advanced filtration units to safely handle waste gases and process industrial wastewater in accordance with strict environmental rules.
Our strategically located plants in Shandong, Zibo, Fushun, and Nanjing ensure continuous chemical supply lines. By sourcing raw materials directly from SINOPEC and PetroChina, we protect customer operations from severe raw material pricing volatility.
Additionally, our specialized marketing center handles customs compliance, ensuring smooth cargo shipping to Russia, North America, Europe, Australia, and Asian manufacturing corridors.
Addressing the technical, chemical, and operational queries commonly encountered by procurement teams and chemical engineers.
Electronic Grade LSR is characterized by ultra-high purity levels, low ionic content (specifically maintaining Na+, K+, and Cl- below 5 ppm), and extremely low levels of volatile cyclic siloxanes (D4 through D10). This prevents contact fouling in closed relays and micro-assemblies caused by silicone outgassing under heat or electric arcing.
Peroxide curing systems generate volatile organic acid by-products during processing that can corrode sensitive copper traces and aluminum bonds. Platinum-catalyzed addition curing (hydrosilylation) proceeds via double-bond addition without emitting any by-products, ensuring zero shrinkage, depth of cure, and excellent corrosion resistance.
We utilize fully automated DCS (Distributed Control Systems) and SIS (Safety Instrumented Systems) at our new Shandong Shouguang plant. These systems continuously monitor temperature, flow rate, pressure, and catalyst ratios, producing consistent batches with a target capacity of 30,000 tons annually.
We offer custom-filled silicone elastomers using specialized high-purity alumina (Al2O3) or zinc oxide fillers to achieve thermal conductivity values ranging from 0.8 W/m·K to over 2.5 W/m·K, allowing heat dissipation away from dense power semiconductors.
C5 and C9 petroleum resins serve as performance tackifiers and binders in industrial hot-melts and protective coatings. Our integrated factories in Zibo, Fushun, and Nanjing utilize raw materials from SINOPEC to guarantee supply continuity for these systems.
For liquid silicone rubbers, we provide standard 20 kg pails and 200 kg steel drums. Silane coupling agents are shipped in 200 kg drums, 1000 kg IBC totes, or ISO tanks. All packages are moisture-sealed and packaged in nitrogen atmospheres to prevent pre-hydrolysis during transport.
Explore our specialized range of chemical crosslinkers, siloxanes, and custom resin additives designed for critical industrial applications.
