Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Evonik Dynasylan 6490 Silane Coupling Agent

Evonik Dynasylan 6490 is a high-performance vinyl-functional silane oligomer specifically engineered as an advanced coupling agent for mineral-filled polymer composites. This innovative formulation features vinyl and alkoxy functional groups that provide exceptional bonding between inorganic fillers and organic polymer matrices, ensuring superior electrical properties and mechanical performance in demanding applications

Features Of Evonik Dynasylan 6490 Silane Coupling Agent

  1. Enhanced Interfacial Bonding - Superior adhesion between fillers and polymer matrices

  2. Excellent Hydrophobicity - Maintains electrical integrity in humid environments

  3. Improved Process Safety - High flash point and thermal stability

  4. Reduced VOC Emissions - Environmentally compliant formulation

  5. Versatile Compatibility - Wide applicability across various polymer systems

Typical Applications Of Evonik Dynasylan 6490 Silane Coupling Agent

  1. High-Voltage Cable Insulation - Mineral-filled cross-linked polyethylene systems

  2. Flame-Retardant Compounds - ATH/MDH filled HFFR cable applications

  3. Automotive Wire Harnesses - Enhanced moisture resistance in vehicle cables

  4. Industrial Cable Jacketing - Improved mechanical and electrical properties

  5. Polymer Composite Modification - Filler treatment for enhanced dispersion

Specifications Of Evonik Dynasylan 6490 Silane Coupling Agent

Product TypeVinyl alkoxysilane oligomer-
AppearanceColorless transparent liquidVisual
Active Content≥ 98.5%GC Analysis
Viscosity (25°C)30-60 mPa·sISO 3104
Density (25°C)0.97-1.03 g/cm³ISO 3675
Flash Point≥ 105°CISO 2719
Refractive Index (20°C)1.420-1.430ISO 2806
Volatile Content≤ 1.0%ISO 3251
Recommended Dosage0.3-2.5% in compound-
Storage Stability24 months in sealed container-


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