Hongye SIlicone Rubber's Dimethyl silicone oil, also known as polydimethylsiloxane (PDMS), is a colorless, transparent, odorless and non-toxic linear polysiloxane fluid with trimethylsiloxy groups as end groups. It features excellent high and low temperature resistance, electrical insulation, lubricity and chemical stability, widely used in industry, daily chemicals, medicine, food and other fields. With adjustable viscosity, it meets diverse application needs and has good biocompatibility, complying with relevant international and domestic standards. It is a versatile functional material with stable performance and wide adaptability.
Product Overview
Hongye SIlicone Rubber's Dimethyl silicone oil is a new type of synthetic polymer material with a linear polydimethylsiloxane structure, chemical formula (CH₃)₃SiO((CH₃)₂SiO)ₙSi(CH₃)₃ (n is the degree of polymerization), CAS number 9006-65-9. Also called methyl silicone oil or 201 silicone oil, it is equivalent to foreign brands such as DC-200 and KF96. It exists as a flowable liquid with different viscosities (5cps~8000000cps) and has no corrosion to metals, making it easy to store and use.
Product Features & Advantages
1. Excellent temperature resistance: Can be used for a long time in the range of -50℃~220℃, no decomposition at high temperature and no solidification at low temperature.
2. Superior electrical insulation: High breakdown voltage, resistance to arc and corona, low dielectric loss, suitable for electrical equipment.
3. Good lubricity and shear resistance: 20 times higher than ordinary mineral oil, stable viscosity during long-term use.
4. Low surface tension: Excellent defoaming, mold release and water repellency.
5. Physiological inertness: Non-toxic, non-irritating, good biocompatibility, suitable for medicine and daily chemicals. 6. Stable chemical properties: Resistant to oxidation, acid and alkali, no reaction with most substances.
Technical Specifications
Viscosity (25℃): 10~1000 mm²/S (adjustable); Refractive index (25℃): 1.390~1.410; Flash point (open cup): ≥160℃; Specific gravity (25℃): 0.930~0.975; Freezing point: ≤-50℃; Dielectric constant (25℃): 2.60~2.80; Volume resistivity: ≥1.0×10¹⁴ Ω·cm; Dielectric strength: ≥12 kv/mm; Appearance: Colorless and transparent liquid.
How to Use
1. Direct use: Used as lubricant, insulation oil and damping oil directly.
2. Dilution use: Dilute with organic solvent to 0.5%~2.5% solution as mold release agent or defoamer, add 10~100PPM for defoaming.
3. Coating use: Apply the solution on the surface of objects, heat treat at 150~300℃ to form a waterproof and insulating film.
4. Storage: Store in a clean, sealed container, avoid acid, alkali and open flame, and store as non-dangerous goods.
Application Scenarios
1. Industrial field: Electrical insulation (transformers, capacitors), mold release (plastic, rubber molding), defoaming (chemical, textile, fermentation), lubrication (precision instruments).
2. Daily chemicals: Skin care products, hair care products, cosmetics (improve texture and skin feel).
3. Medicine & food: Pharmaceutical excipients (defoaming agent for gastrointestinal distension), medical device lubrication, food processing defoaming agent.
4. Other fields: Building waterproofing, textile finishing, agricultural anti-frost, etc.
It can also be used to adjust the hardness of Condensation Curing Silicone Mold Rubber, Industrial mold silicone rubber, Medical Grade Body Silicone, Food grade mold silicone,
Addition Curing Silicone, Silicone raw materials, Pad Printing Silicone, RTV 2 Silicone Rubber
Certifications and Compliance
Complies with GB 1886.27-2015 (food grade), GB/T 26527-2011 (industrial grade), and meets international standards such as FDA and EU E900. All indicators meet the requirements of relevant national and industrial standards, passing strict quality testing before leaving the factory.
Customization Options
Customizable viscosity (5cps~8000000cps) according to customer needs; Provide different purity grades (industrial grade, food grade, medical grade); Customize packaging specifications (25kg, 50kg, 200kg, 950kg) to meet different usage and transportation needs.
Production Process
Raw materials (organosilicon monomers) → hydrolysis and polycondensation (using weak acid clay as catalyst for high selectivity catalysis) → neutralization and purification → viscosity adjustment → filtration and inspection → finished product packaging. The process is environmentally friendly, with short reaction time and low cyclic body residue.
FAQ
Q1: Is dimethyl silicone oil toxic?
A1: It is non-toxic and non-irritating, with good biocompatibility, safe for human body and environment.
Q2: What is the shelf life?
A2: 3 years under proper storage conditions, re-inspection qualified can be used continuously.
Q3: Can it be mixed with other oils?
A3: It can be mixed with most organic solvents, but not with water and strong acid-base substances.
Q4: Is it flammable?
A4: It is non-flammable, with high flash point, and stored and transported as non-dangerous goods.
