
CYS-3701E Carboxy-Modified Silicone Fluid
CYS-3701E is a high-performance silicone fluid with carboxyl groups (-COOH) on a PDMS backbone. It offers strong reactivity, good adhesion, and resin compatibility, and is used in coatings, lubricants, mold release agents, and resin modification.
Product Introduction:
CYS-3701E is a high-performance carboxy-functional silicone fluid developed. It features carboxyl groups (-COOH) grafted onto a polydimethylsiloxane (PDMS) backbone, enhancing its chemical reactivity, substrate adhesion, and resin compatibility. It is commonly used in advanced coatings, lubricants, mold release formulations, and resin modification.
Technical Specifications
Property | Typical Value |
---|---|
Product Name | CYS-3701E Carboxy-Modified Silicone Fluid |
CAS Number | Not publicly listed |
Chemical Structure | Carboxy-modified Polydimethylsiloxane (PDMS) |
Appearance | Clear, colorless liquid |
Viscosity at 25°C | ~2,000 mm²/s (cSt) |
Specific Gravity at 25°C | 0.98 |
Refractive Index at 25°C | 1.409 |
Carboxy Group Equivalent Weight | ~4,000 g/mol |
Flash Point | > 200°C |
Solubility | Soluble in organic solvents |
Stability | Excellent thermal and chemical stability |
Key Benefits & Performance Features
Reactive Carboxyl Termination: Enables chemical bonding with substrates, improving adhesion and crosslinking.
Excellent Lubricity: Low surface energy and high slip properties make it ideal for high-performance silicone lubricants.
Superior Release Properties: Suitable for mold release agents in thermoplastics and rubber molding.
Enhanced Resin Compatibility: Compatible with alkyd resins, polyesters, and other organic polymers.
High Thermal Stability: Withstands elevated temperatures without degradation.
Improved Substrate Wetting: Enhances flow, leveling, and spreadability in coatings and films.
Common Applications
CYS-3701E Silicone Fluid is widely used across industries for its multifunctional performance:
Industrial & Automotive Coatings – Improves leveling, wetting, and durability.
Resin Modifier – Enhances compatibility with polyester and alkyd resins.
Silicone-Based Lubricants – Used in precision mechanical components and high-temperature environments.
Mold Release Agents – Ideal for injection molding and rubber processing.
Personal Care Products (Limited Use) – As a reactive additive in specialized formulations.
Packaging Options:
We offer flexible packaging for both R&D and bulk industrial use:
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1 kg & 5 kg HDPE bottles (sample/lab-scale)
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25 kg pails & 200 kg drums (industrial production)
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1000 kg IBC totes available on request
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Custom viscosity grades and formulations available under Silico® brand lines
All technical data provided is based on current knowledge and experience. Users must test product suitability for intended applications.
No warranties are expressed or implied. Silico® assumes no liability for incidental or consequential damages.

Jessica G.
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