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Dimethyl Silicone Oil, chemically identified as Polydimethylsiloxane (PDMS), stands as a cornerstone in modern industrial chemistry. Characterized by its exceptional thermal stability, shear resistance, dielectric properties, and chemical inertness, it plays a vital role across automotive, electronics, textile, cosmetics, and pharmaceutical sectors. As global manufacturing demands shift toward materials with heightened precision and longer lifespans, identifying a trustworthy, large-scale manufacturer becomes a strategic priority for global procurement networks.
Shandong Boctok Chemical Co., founded in 2012, operates as a leading hub for organosilicone, petroleum resins, and agrochemical intermediates. Through continuous engineering innovation and a robust international sales network, Boctok recorded US$280 million in sales in 2023. Under its specialized BOCTOK™ brand, the company has developed deep-seated partnerships across domestic Chinese markets, North America, Europe, East Asia, and notably the Russian industrial sector. By integrating cutting-edge manufacturing facilities with strict quality controls, Boctok provides consistent product supplies to Fortune 500 enterprises and specialized manufacturing operations worldwide.
Crucial factors shaping the procurement pathways and technical requirements of dimethyl silicone oil on a global scale.
Industrial application environments demand exact, temperature-resistant viscosity indices. Modern manufacturers rely on automated polymerization systems to synthesize narrow-distribution molecular weight profiles, ensuring consistent viscosity ranging from 0.65 cSt up to 1,000,000 cSt.
With strict global regulations (such as EU REACH) targeting trace amounts of D4, D5, and D6 cyclic siloxanes, high-tier chemical plants utilize thin-film evaporators and multi-stage vacuum stripping to maintain volatile content below industry-mandated limits.
Non-toxicity, biological inertness, and compliance with cosmetic and FDA regulations make dimethyl silicone oil the standard carrier in skincare formulations, medical-grade lubricants, and food-contact releases.
To secure absolute chemical consistency, Shandong Boctok Chemical Co. invested US$65 million to establish a modern plant in Bohai Industrial Park, a certified chemical zone in Shouguang City, Shandong Province. Spanning 6 automated DCS lines with a dedicated capacity of 30,000 tons of silane coupling agents and silicone compounds, this installation is designed to meet complex demands.
Typical physical and chemical properties of Polydimethylsiloxane (Dimethyl Silicone Oil) across diverse viscosities.
| Property / Grade | Low Viscosity (0.65 - 20 cSt) | Medium Viscosity (50 - 1,000 cSt) | High Viscosity (5,000 - 60,000 cSt) | Super-High Viscosity (>100k cSt) |
|---|---|---|---|---|
| Appearance | Water-white transparent liquid | Water-white transparent liquid | Water-white clear fluid | Highly viscous clear gel-like fluid |
| Flash Point (°C) | 35 to 220 °C | > 280 °C | > 310 °C | > 315 °C |
| Specific Gravity (25°C) | 0.760 - 0.950 | 0.960 - 0.970 | 0.971 - 0.975 | 0.976 - 0.978 |
| Refractive Index (25°C) | 1.380 - 1.398 | 1.400 - 1.403 | 1.403 - 1.404 | 1.404 - 1.405 |
| Volatile Content (150°C, 2h) | ≤ 10.0% (grade dependent) | ≤ 1.0% | ≤ 0.8% | ≤ 0.5% |
| Volatility / Low D4-D6 | Stripped grades available | Certified Low-D4 < 0.1% | Certified Low-D4 < 0.1% | Certified Low-D4 < 0.1% |
From industrial insulation to biological agriculture, dimethyl silicone oil and related resin derivatives optimize key product properties.
How Shandong Boctok Chemical Co. coordinates global supply pathways, technological design, and regulatory compliance.
Our products undergo rigorous testing protocols in advanced chemistry laboratories to ensure that every aspect meets the highest quality standards before shipping.
We operate advanced, digital production lines that allow us to effectively expand production capacity and meet the demand for mass customization and bulk shipments.
Our professional team is available online 24 hours a day to provide attentive service and answer all technical, logistical, and commercial inquiries.
An optimized logistics system ensures fast order processing, dangerous goods shipping documentation compliance, and timely delivery to global ports.
Detailed chemical, structural, and procurement insights compiled by senior organosilicone developers.
Explore our selection of silanes, hydrocarbon resins, and agricultural materials.
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