Hydroxy Terminated Polysiloxane
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Product Highlights
- Wide Application Scope: Used in oil drilling, water treatment, rubber, plastics, coatings, textiles, and electronics.
- Multiple Viscosity Options: Available in various viscosities from 40 to 300,000 mPa.s to suit different formulation needs.
- High Purity Grade: Offers 99.9% purity, ensuring high performance for sensitive electronic and medical applications.
- Custom Packaging: Flexible packaging options including 25kg, 50kg, 200kg drums and 1000kg IBC tanks.
- Certified Quality: Manufactured under ISO9001, ISO14001, and IATF16949 standards for consistent quality.
- Versatile Functionality: Serves as filler treatment, anti-structuring additive, or reactive diluent for adhesives.
- OEM/ODM Support: Provides OEM and ODM services with dedicated R&D engineers for custom solutions.
- Stable Storage Life: Shelf life of 12 months from production date when stored in sealed, cool, and dry conditions.
Product Attributes
- Customization
- Available
- CAS No.
- 70131-67-8
- Formula
- Ho[(CH3)2sio]Nh
- Model NO.
- COSIL-F
- EINECS
- Otherr
- Appearance
- Liquid
- Usage
- Oil Drilling Auxiliary Agent, Water Treatment Chemicals, Rubber Auxiliary Agents, Plastic Auxiliary Agents, Coating Auxiliary Agents, Textile Auxiliary Agents, Paper Chemicals, Surfactants, Leather Auxiliary Agents, Electronics Chemicals
- Color
- Colorless and Transparent
- Other Names
- Hydroxy Terminated Polysiloxane
- CAS
- 70131-67-8
- Mf
- Ho[(CH3)2sio]Nh
- Purity
- 99.9%
- Package
- 25/50/200 Kg / Drum;1000 Kg/ IBC
- Certification
- ISO,IATF
- Classification
- Chemical Auxiliary Agent
- Keywords
- Silicone Oil
- Brand Name
- Cosil
- Sample
- Avilable
- Place of Origin
- Jiangsu, China
- Product Name
- Hydroxypolysiloxane Pdms
- Application
- Coating Auxiliary Agents,Electronics Chemicals
- Type
- Adsorbent
- Adsorbent Variety
- Silica Gel
- Transport Package
- Barrel
- Specification
- 25/50/200 kg / drum; 1000 kg/ IBC
- Trademark
- COSIL
- Origin
- Jiangsu
- HS Code
- 3910000000
- Production Capacity
- 40000 Kilograms /Year
Product Images of Hydroxy Terminated Polysiloxane
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Product Description

Hydroxypolysiloxane
The COSIL F series of hydroxypolysiloxanes is a hydroxyl terminated polydimethylsiloxane. It is a series of functional polymers with different viscosities and different contents of terminal hydroxyl groups. Low-viscosity polymers can be used for filler surface treatment and anti-structuring additives for high-temperature adhesives, and can also be used in room-temperature adhesive formulations. Low-viscosity hydroxy silicone oils can also be used as reactive diluents to adjust the overall viscosity of the formulation.
Main Parameters
|
Model
|
Appearance
|
Density (g/cm3)
|
Volatile (%)
|
Viscosity (mPa.s)
|
|
F-004
|
Clear transparent liquid
|
0.95
|
-
|
40
|
|
F-007
|
0.96
|
-
|
70
|
|
|
F-075
|
0.97
|
<1
|
750
|
|
|
F-1.5
|
0.98
|
<1
|
1500
|
|
|
1F-3
|
0.98
|
<1
|
3000
|
|
|
F-6
|
0.98
|
<1
|
6000
|
|
|
F-20
|
0.98
|
<1
|
20000
|
|
|
F-50
|
0.98
|
<1
|
50000
|
|
|
F-80
|
0.98
|
<1
|
80000
|
|
|
F-300
|
0.98
|
<1
|
300000
|
It is widely used in the fields of silicone rubber industry, electronic appliances, building materials, leather material processing, plastic processing, motor manufacturing, petrochemical industry, textile printing and dyeing, medicine and health and technology.


About COSIL:
Cosil's scope of core businesses is mainly described as below:

About the Supplier
This supplier has been audited by SGS. Verify the report on the official SGS website with ID "QIP-ASI2241659". Items marked "" are certified.
Company Profile
Located in Yangtze River International Chemical Park of Zhangjiagang city in Yangtze Delta Economic Zone, Zhangjiagang Cosil Advanced Co., Ltd is a company that's staffed with skilled professionals and specialists, including technical, production, sales and management personnel, all of them have years of experience in thesilicone industry. Since its establishment, the Company is always committed to provide various industries and trades, including building&construction, textile, electronic and electrical appliances and assembly material industries etc., with perfect solutions of products. The Company is an executive member of the National Fine Chemical Industrial & Technological Innovation and Strategy Alliance and a member of Jiangsu Provincial Association of New Material Industry as well. Meanwhile, it's titled as a National High-tech Enterprise and runs a Graduate Workstation of Jiangsu Provincial Level. Products of the Company are certified for their compliance with ISO9001, ISO14001 and IATF16949 Standards. The Company is always committed to be a credible manufacturer that provide the customers with reliable solutions, which means high quality products, proven processes and good services. With our unremitting pursuits of innovation, we, the Company, never lose faith on ourselves, and we believe all customers deserve a manufacturer and vendor as credible and reliable as Cosil.
Processes and good services.
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory
- Address
- Jiangsu Yangzijiang International Chemical Industrial Park Donghai Road, Suzhou, Jiangsu, China
-
Plant Area
- 12000 square meters
-
Number of Employees
- 30
-
Registered Capital
- 48,020,408 RMB
-
Terms of Payment
- LC, T/T
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR
-
Average Lead Time
-
Peak Season Lead Time: within 15 workdays
Off Season Lead Time: within 15 workdays -
Nearest Port
- Shanghai Port
Our Production Capability & Technical Expertise
-
Main Products
- Silicone Oil, Construction Silicone Sealant, Electronics Silicone Sealant
-
Production Machines
- Glue Making Machine, Compound Machine, Tensile Machine, Thermal Conductivity Tester, Rheometer
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 5 people
-
Own Brand
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2008-11-11
-
Main Markets
- North America, Southeast Asia/ Mideast, Domestic
-
Number of Foreign Trading Staff
- 1
-
Overseas Agent/Branch
- No
FAQ
- What is the purity of Hydroxy Terminated Polysiloxane?
- The product has a purity of 99.9%, making it suitable for high-precision applications.
- What are the common applications for this product?
- It is widely used in oil drilling, water treatment, rubber, plastics, coatings, textiles, paper chemicals, and electronics.
- How should the product be stored?
- Store in a cool, dry place with the original package sealed. The shelf life is 12 months from the production date.
- What packaging options are available?
- We offer 25kg, 50kg, and 200kg drums, as well as 1000kg IBC tanks. Custom packaging is available upon request.
- What certifications does the manufacturer hold?
- The company is certified for compliance with ISO9001, ISO14001, and IATF16949 standards.
- What is the lead time for orders?
- The average lead time is within 15 workdays for both peak and off-season periods.
- Can you provide OEM or ODM services?
- Yes, we offer both OEM and ODM services supported by our team of 5 R&D engineers.
- What is the appearance of the product?
- The product appears as a colorless and transparent liquid.
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