Pure Silicone Oil Manufacturers in China

Leading manufacturer, wholesaler, and exporter of pure silicone oil from China, providing the latest prices online and delivering the goods as per contract. Yongrui's pure silicone oils include dimethyl silicone oil, methyl phenyl silicone oil, and methyl hydrogen silicone oil.

Dimethyl Silicone Oil (also known as Polydimethylsiloxane/201 Methyl Silicone Oil / Basic Silicone
Fluid)

Colorless, transparent, odorless, physiologically inert, multi-viscosity dimethyl silicone oil is the most basic product among silicone oils. The use of dimethyl silicone oil can improve the gloss of the coating surface and improve cracking, peeling, and other phenomena on the coating surface. Specially treated dimethyl silicone oil can withstand a maximum temperature of 250°C and can be used as a heat transfer oil for sealed or open equipment for a long time.

Standard Viscosity Product Details

STD Viscosity（25℃）	Flash point (opened cup),℃	Density (25℃)/(g/cm3)	Volatile content (150℃,24h)/%	Refractive index (25℃)	V.T.C	Surface tension (25℃)/mN/m	Acid Number （KOH）	In stock?
0.65 cSt	≥-1	0.76	≤1.0	1.375	0.31	1.59	<10	In Stock China
5 cSt	≥90	0.915	≤1.0	1.396	0.54	1.97	<10	In Stock China
10 cSt	≥16	0.935	≤1.0	1.399	0.55	20.1	<10	In Stock China
20 cSt	≥260	0.95	≤1.0	1.4	0.57	20.8	<10	In Stock China
50 cSt	≥310	0.96	≤0.5	1.402	0.59	20.8	<10	In Stock China
100 cSt	≥315	0.965	≤0.5	1.403	0.59	20.9	≤10	In Stock China
200 cSt	≥315	0.97	≤0.5	1.403	0.6	21.1	≤10	In Stock China
300 cSt	≥315	0.97	≤0.5	1.403	0.6	21.1	≤10	In Stock China
350 cSt	≥315	0.97	≤0.5	1.403	0.6	21.2	≤10	In Stock China
500 cSt	≥315	0.97	≤0.5	1.403	0.6	21.1	≤10	In Stock China
1000 cSt	≥315	0.97	≤0.5	1.403	0.6	21.2	/	In Stock China
3000 cSt	≥315	0.97	≤0.5	1.403	0.6	21.3	/	In Stock China
5000 cSt	≥315	0.975	≤0.5	1.403	0.6	21.3	/	In Stock China
6000 cSt	≥315	0.975	≤0.5	1.403	0.61	21.3	/	In Stock China
10000 cSt	≥315	0.975	≤0.5	1.403	0.61	21.3	/	In Stock China
12500 cSt	≥315	0.975	≤0.5	1.403	0.61	21.3	/	In Stock China
30000 cSt	≥315	0.976	≤0.5	1.403	0.61	21.3	/	In Stock China
50000 cSt	≥315	0.976	≤0.5	1.403	0.61	21.3	/	In Stock China
60000 cSt	≥315	0.976	≤0.5	1.403	0.61	21.3	/	In Stock China
100000 cSt	≥315	0.977	≤1.5	1.403	0.61	21.3	/	In Stock China
300000 cSt	≥315	0.977	≤1.5	1.403	0.61	21.3	/	In Stock China
500000 cSt	≥315	0.978	≤1.5	1.403	0.61	21.3	/	In Stock China
1000000 cSt	≥315	0.978	≤1.5	1.403	0.61	21.3	/	In Stock China
Usage/Application	Electronics and information industry: Copier oil and a flame retardant auxiliary agent for personal computers and other casings. Electronics and energy industries: Transformer oil, capacitor oil, insulating oil for brakes, and shock-absorbing oil. Coatings, chemical industry: Lubricants, release agents, polishing, heat transfer oils, anti-fogging agents, anti-static agents, defoaming agents, coating additives, and foam regulators. Construction, civil engineering: ALC, hydrophobic treatment of exterior wall panels and insulation materials, shock absorbers for earthquake prevention. Transportation machinery: Shock absorber oil, viscous coupling oil, fan coupling shaft oil, brake oil, traction oil, car wax, and polishing agent. Machinery industry: Lubricating oil, die-cutting release agent, forging die release agent, diffusion pump oil, high and low-temperature heat transfer oil. Pulp, papermaking industry: Softness, hydrophilic softness, hydrophobic, waterproof, anti-static, antibacterial processing. Food and leisure: Defoaming agent in soy sauce and tofu manufacturing. Release agent in snack manufacturing and food container forming. Cosmetics industry, household products: Active ingredients in shampoos, hair dyes, and antiperspirants.
Available packaging options	1KG, 5KG, 25KG, 50KG, 190KG, 200KG (plastic drum/iron drum)

Methyl Hydrogen Silicone oil (also known as Polymethylhydrogensiloxane, Methylhydrogen Silicone Fluid)

Methyl Hydrogen Silicone oil is a liquid polymeric silicone obtained by replacing part of the methyl groups of dimethyl silicone oil with hydrogen groups, which is transparent, odorless, has no visible impurities, and has particularly excellent hydrophobicity, weather resistance, and lubricity. According to different hydrogen values, it can be divided into high hydrogen content silicone oil (hydrogen content: 0.1-1.0/%) and low hydrogen content silicone oil (hydrogen content: 1.55-1.6/%). We provide stock silicone oils with regular hydrogen content or customized viscosity and hydrogen content according to customer requirements.

Price range: USD1.2 to USD2.3/Kg

Performance parameters

Item	Content of  Hydrogen/%	Viscosity(25℃)	Volatile Compounds（105℃,1.5h）/%	Use/Application	In stock?
Low hydrogen silicone oil	0.1-1.0	50-200 cSt	≤1.5	Intermediates for the synthesis of modified silicone oil Raw materials for liquid silicone rubber, such as cross-linking agents for addition-type liquid silicone rubber products Dilute silicone rubber ink Release agent raw materials	In Stock China
High hydrogenated silicone oil	1.55-1.6	20-30 cSt	≤4	Anti-yellowing agent for high-temperature vulcanized silicone rubber Low hydrogen content silicone oil telomerization raw material Building materials's waterproof and antifouling treatment Hydrophobic treatment of ceramic products, fibers, and powders	In Stock China
Precautions	Within the temperature range of -20℃ to +50℃ conditions, store for one year from the production date marked on the packaging.

Methyl phenyl silicone oil is the product that replaces part of the methyl groups of dimethyl silicone oil with phenyl groups. It is colorless or slightly yellow, transparent, and has no peculiar smell, has particularly excellent cold resistance, chemical resistance, alcohol solubility, and heat stability. According to different use occasions, it can be divided into low-temperature use, high-temperature use, oil diffusion pump use, and cosmetic addition. We sell regular grades of methyl phenyl silicone fluids and customized ones according to the customer's required viscosity and phenyl content.

Usage	Viscosity(25℃)	Flash Point（℃）	Refractive index (25℃)	Application	In stock?
Low-temperature use	35-50 cSt	＞190	1.5400-1.5580	Use within the temperature range of -65℃ to +200℃. Anti-shock oil, lubricating oil, brake oil, ultra-low temperature solvent, etc. used in low-temperature environments.	In Stock China
High-temperature use	100-520 cSt	＞300	1.4850-1.5100	Long-term use in the temperature range of -30℃ to +250℃, during a short time withstand the high temperature of 300℃. High-temperature thermal oil, release agent for molten metal, oil bath, etc. used in high-temperature environments.	In Stock China
Oil diffusion pump use	37-185 cSt	210- 243	1.5520-1.5785	Particularly excellent oxidation resistance, thermal stability, and chemical resistance. Suitable for diffusion pump and vacuum backing pump applications.	In Stock China
Cosmetic addition use	15-30 cSt	-	1.4549-1.4626	Excellent alcohol solubility and a high refractive index improve the product's brightness. As a cosmetic raw material (additive), it is widely used in sunscreen products, skincare, hair care, etc.	In Stock China
Precautions	The indoor temperature is allowed to be -40C° to +50C°. The storage period is 3 years.