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IOTA-201 Dimethyl Silicone Oil, also known as Polydimethylsiloxane (PDMS) or Dimethyl Silicone Fluid, is a versatile synthetic silicone polymer widely used in industrial manufacturing, personal care formulations, rubber processing, textiles, coatings, and electrical applications.
With a chemical structure based on repeating dimethylsiloxane units, IOTA-201 offers excellent lubricity, smoothness, water repellency, chemical stability, electrical insulation, and resistance to high and low temperatures.
One of its key advantages is its broad viscosity range, from 5 cSt to 2,000,000 cSt, allowing customers to select suitable grades for different processing conditions and application requirements. Depending on the viscosity grade, IOTA-201 can range from a freely flowing liquid to a highly viscous, semi-solid material.
Manufactured by Anhui IOTA Silicone Oil Co., Ltd., IOTA-201 Dimethyl Silicone Oil provides flexible solutions for manufacturers seeking reliable silicone fluids with adjustable viscosity and multifunctional properties.
| Parameter | Description |
|---|---|
| Product Name | IOTA-201 Dimethyl Silicone Oil |
| Chemical Name | Polydimethylsiloxane |
| English Name | Dimethyl Silicone Oil / PDMS |
| CAS Number | 63148-58-3 |
| EINECS Number | 9006-65-9 |
| Molecular Formula | (CH₃)₃SiO[(CH₃)₂SiO]ₙSi(CH₃)₃ |
| Appearance | Colorless, transparent liquid |
| Viscosity Range | 5–2,000,000 cSt |
IOTA-201 Dimethyl Silicone Oil is valued for its versatile physical and chemical properties, making it suitable for a wide range of industrial formulations.
Dimethyl silicone oil provides a smooth, lubricating surface that helps reduce friction between contacting materials. It is commonly used in precision lubrication, textile processing, mold release agents, and surface treatment formulations.
PDMS has low surface tension and hydrophobic characteristics, helping improve water resistance and moisture protection in selected formulations. It can be used in leather treatment, textile finishing, coatings, and water-repellent products.
IOTA-201 exhibits good thermal stability and a relatively low temperature-viscosity coefficient. Its reference long-term operating temperature range is approximately -50°C to +200°C, depending on viscosity grade and application conditions.
Dimethyl silicone oil possesses good electrical insulating properties and can be evaluated for electrical and electronic applications requiring stable insulating fluids.
PDMS offers good chemical stability, low surface tension, and resistance to moisture. These properties make it useful in industrial formulations requiring spreading, lubrication, surface modification, and foam control.
One of the major advantages of IOTA-201 is its wide viscosity selection, ranging from low-viscosity fluids to high-viscosity silicone materials. This allows manufacturers to choose the appropriate grade for specific processing and performance requirements.
IOTA-201 is available in multiple viscosity grades to meet different industrial requirements.
| Technical Parameter | 201-10 | 201-20 | 201-50 | 201-100 | 201-200 | 201-350 |
|---|---|---|---|---|---|---|
| Viscosity at 25°C (mPa·s) | 10±2 | 20±4 | 50±5 | 100±5 | 200±10 | 350±10 |
| Flash Point (°C, min.) | 160 | 210 | 270 | 310 | 310 | 310 |
| Density at 25°C (g/cm³) | 0.930–0.940 | 0.945–0.955 | 0.955–0.965 | 0.960–0.970 | 0.962–0.972 | 0.965–0.975 |
| Volatile Content (150°C, 3h, %) | ≤3 | ≤2 | ≤1.5 | ≤1.0 | ≤1.0 | ≤1.0 |
Note: The above table shows representative technical specifications for selected viscosity grades. Additional viscosity grades are available. Please contact our sales team for detailed specifications.
IOTA-201 Dimethyl Silicone Oil is widely used in personal care formulations, including skin creams, lotions, shampoos, and body washes.
Depending on viscosity grade and formulation compatibility, it can provide:
A smooth and silky skin feel.
Improved spreadability.
Softening and conditioning effects.
Enhanced lubrication during application.
Water-repellent surface properties.
Different viscosity grades can be selected according to the desired sensory profile and formulation requirements.
Dimethyl silicone oil is used as a mold release agent, isolation agent, and surface gloss additive in the processing of rubber, plastics, latex, and polyurethane products.
Its lubricating and surface-modifying properties can help reduce adhesion between molded products and molds, improve demolding efficiency, and support consistent product surface quality.
IOTA-201 can be evaluated for various industrial lubrication and fluid applications, including:
Precision instrument lubricants.
Hydraulic fluid formulations.
Liquid spring and damping fluid systems.
Buffer and shock-absorbing fluids.
Mold release formulations.
Selected electrical insulating applications.
Its viscosity flexibility allows manufacturers to select suitable grades for different equipment and operating conditions.
Specific applications such as transformer oils and brake fluids require dedicated electrical, thermal, and compatibility testing before use.
In textile manufacturing, dimethyl silicone oil is used as a functional ingredient in textile finishing and processing formulations.
Its main functions include:
Improving fabric softness and smoothness.
Providing a silky hand feel.
Reducing friction during sewing.
Lubricating synthetic fiber spinning components.
Supporting textile finishing and garment pressing processes.
IOTA-201 can be incorporated into leather treatment formulations as a softening agent, water-repellent component, hand-feel modifier, defoaming ingredient, and gloss additive.
It helps improve the surface feel and processing characteristics of treated leather products.
In chemical manufacturing, coatings, and construction material formulations, dimethyl silicone oil can be used as a lubricant, defoaming agent, and functional surface additive.
Its low surface tension and hydrophobic characteristics make it useful in selected formulations requiring improved surface properties and moisture resistance.
Beyond conventional industrial applications, PDMS can also serve as a base material or functional component in the development of specialty silicone formulations and modified polymer systems.
It can be combined or chemically modified with other materials to develop silicone products with tailored properties for specific applications.
Viscosity is one of the most important factors when selecting dimethyl silicone oil.
Different viscosity grades provide different flow characteristics, spreading behavior, lubrication performance, and processing properties.
Low viscosity grades (5–50 cSt): Suitable for applications requiring high fluidity, easy spreading, and lightweight lubrication.
Medium viscosity grades (100–350 cSt): Suitable for general industrial lubrication, textile finishing, surface treatment, and mold release formulations.
High viscosity grades (1,000–100,000 cSt): Can be considered for applications requiring thicker lubricating films, higher consistency, and specialized formulation performance.
Ultra-high viscosity grades (100,000–2,000,000 cSt): Suitable for selected specialty applications requiring highly viscous silicone materials.
The final grade should be selected according to the desired viscosity, operating temperature, processing method, and compatibility with other formulation components.
Anhui IOTA Silicone Oil Co., Ltd. specializes in silicone materials and provides a broad range of silicone oil products for industrial customers worldwide.
Our advantages include:
Multiple dimethyl silicone oil viscosity grades.
Flexible product selection for different applications.
Technical documentation and product specifications.
Professional product selection support.
A comprehensive portfolio of silicone oils, functional silicone fluids, silicone resins, and silica materials.
We work with manufacturers, distributors, and formulation developers to provide suitable silicone material solutions for their production requirements.
Q1: What is dimethyl silicone oil?
Dimethyl silicone oil is a synthetic silicone polymer mainly composed of repeating dimethylsiloxane units. It is also known as polydimethylsiloxane (PDMS) and is widely used as a lubricant, mold release agent, water-repellent additive, and functional ingredient in personal care products.
Q2: What is the CAS number of IOTA-201 silicone oil?
The CAS number provided for IOTA-201 Dimethyl Silicone Oil is 63148-58-3.
Q3: What viscosity grades are available for IOTA-201?
IOTA-201 offers a wide viscosity range from 5 cSt to 2,000,000 cSt. Selected standard grades include 201-10, 201-20, 201-50, 201-100, 201-200, and 201-350.
Q4: What is dimethyl silicone oil used for?
Dimethyl silicone oil is used in cosmetics, rubber and plastic mold release, industrial lubrication, textile finishing, leather treatment, coatings, construction materials, and selected electrical applications.
Q5: Can dimethyl silicone oil be used as a mold release agent?
Yes. PDMS is commonly used in mold release formulations for rubber, plastic, and polyurethane processing because of its lubricating and surface-modifying properties.
Q6: Is IOTA-201 suitable for cosmetic formulations?
Selected viscosity grades can be evaluated for cosmetic and personal care formulations. The appropriate grade should be selected based on formulation compatibility, purity requirements, safety documentation, and the regulations of the target market.
Q7: What is the difference between dimethyl silicone oil and phenyl silicone oil?
Dimethyl silicone oil contains methyl groups attached to its siloxane backbone, while phenyl silicone oil contains phenyl groups. Their thermal behavior, refractive index, compatibility, and other physical properties can differ. The appropriate choice depends on the intended application.
Looking for a reliable Dimethyl Silicone Oil Manufacturer, PDMS Supplier, or Polydimethylsiloxane Manufacturer?
Anhui IOTA Silicone Oil Co., Ltd. supplies IOTA-201 Dimethyl Silicone Oil in multiple viscosity grades for industrial and personal care applications.
Contact our sales team to request:
Product Technical Data Sheet (TDS).
Safety Data Sheet (SDS).
Available viscosity grades.
Product samples.
Competitive quotations.
Product: IOTA-201 Dimethyl Silicone Oil
Chemical Name: Polydimethylsiloxane (PDMS)
CAS Number: 63148-58-3
Website: https://www.ethylsilicone.com
Email: sales15@siliconeoil.net
Anhui IOTA Silicone Oil Co., Ltd. welcomes inquiries from global distributors, manufacturers, and industrial formulators. We look forward to supporting your silicone material requirements.
