Wechat Code
OH-Hydroxy, Terminated Silicone Fluid
CAS No. 70131-67-8
Formular HO[(CH3)2SiO]nH
Flashing Point >113°C
Boiling Point 182 °C
Other Name OH Polymer; OH-Terminated Polydimethyl Siloxane; Silanol Terminated Polydimethylsiloxane; Silicone Oil
20+ years supplying history;
No claims;
Good and stable quality; Stable supplying;
SGS testing approved; EMTEK, SRICI tested; ISO:90012/ 2015 certified, AAA Credit certified;
Delivery Time: 15-20 days;
Audit acceptable;
Competitive price;
Bigbags Packing; On pallets; IBC packing;
| Testing Item | Standard |
| Viscosity, 25°C, mm2/s | 20-30 |
| Hydroxyl Content (%) | 9.0 Min. |
| Appearance | Colorless transparent fluidy liquid |
HS code: 3910000000
CAS No.: 70131-67-8
● Packages:
200kgs Plastic drum; or 950 kgs IBC
Handling
1. Avoid breathing vapors, mist, or aerosols.
2. Avoid contact with skin, eyes, and clothing.
3. Use in well-ventilated areas or with local exhaust ventilation.
4. Wear appropriate PPE: chemical-resistant gloves, safety goggles/face shield, and protective clothing.
5. Keep away from heat, sparks, open flames, and ignition sources.
6. Ground and bond containers during transfer to prevent static discharge.
7. Wash thoroughly after handling.
8. Prevent spills and minimize environmental release.
9. Avoid contamination with strong acids, bases, or oxidizing agents.
Storage
1. Store in a cool, dry, well-ventilated area.
2. Keep container tightly closed when not in use.
3. Protect from heat, direct sunlight, and ignition sources.
4. Store away from oxidizing agents, acids, and bases.
5. Keep in original containers or approved storage tanks suitable for silicone polymers.
6. Follow local regulations for storage of reactive and flammable liquids if applicable.
1. Condensation-Cure Silicone Rubber (RTV-1 / RTV-2)
OH-PDMS serves as the primary polymer in moisture-curing and two-component condensation systems.
Used in:
Construction sealants
Adhesives
Mold-making silicone
Industrial gasketing
Crosslinks with silane crosslinkers (e.g., alkoxy silanes) in the presence of tin catalysts to form elastomeric networks.
2. Silicone Sealants & Adhesives
Applied in:
Architectural glazing
Structural bonding
Sanitary sealants
General-purpose caulking
Provides flexibility, weather resistance, and long-term durability.
3. Silicone Encapsulation & Potting Compounds
Used in:
Electrical potting
Component protection
Waterproof encapsulation
Offers dielectric insulation and environmental stability.
4. Surface Treatment & Hydrophobic Agents
OH groups enable reaction with:
Inorganic fillers
Silica
Metal oxides
Improves filler compatibility, mechanical strength, and water repellency.
5. Silicone Resin & Modified Polymer Production
Functions as an intermediate in:
Silicone resins
Hybrid organic–silicone materials
Functionalized siloxane polymers
Enables molecular weight adjustment and structural modification.
OUR MARKET
Up till now we’ve developed and supplied to many countries and areas all over the world, with main markets in European countries (Germany, Italy, UK, Spain, Ukraine, Russia, Poland, etc.), USA, South America, Mid East, South-east Asia, Australia, etc. Also seeking more strategic partners and customers under mutual benefits and work through the whole purchasing chain.
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Vietnam
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India
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Belgium
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USA
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Czech Republic
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Mexico
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Colombia
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Singapore
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Ecuador
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Peru
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Russia
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Turkey
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Costa Rica
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Chile
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Indonesia
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Pakistan
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