Name: Evonik Dynasylan BTSE Bis(triethoxysilyl)ethane
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Evonik Dynasylan BTSE Bis(triethoxysilyl)ethane

Highly effective bis-silane coupling agent with two hydrolyzable triethoxysilyl groups linked by an ethylene bridge.
Enables strong covalent bonding between organic polymers and inorganic substrates (e.g., glass, silica, metals).
Offers superior hydrolytic stability compared to monofunctional silanes due to its symmetrical, non-hydrolysable C–C backbone.
Improves mechanical properties—including tensile strength, elongation at break, and moisture resistance—in filled composites and coatings.
Compatible with a wide range of resins including epoxies, polyurethanes, acrylics, and unsaturated polyesters.

Typical Applications Of Evonik Dynasylan BTSE Bis(triethoxysilyl)ethane

Surface treatment of silica, glass fibers, and mineral fillers for reinforced polymer composites.
Adhesion promoter in automotive and industrial sealants and adhesives.
Functional additive in high-performance protective coatings for corrosion protection on metal substrates.
Moisture-scavenging agent and crosslinker in silicone-modified hybrid sol-gel systems.
Reinforcement aid in tire tread compounds and rubber-to-metal bonding formulations.

Chemical Type	Bis(triethoxysilyl)ethane — organosilicon coupling agent
Product Form	Liquid
Appearance	Colorless to pale yellow clear liquid
Density (20 °C)	Approx. 0.97 g/cm³
Refractive Index (20 °C)	Approx. 1.405
Flash Point (PMCC)	Approx. 110 °C
Solubility	Miscible with common organic solvents (e.g., ethanol, acetone, toluene); hydrolyzes in water
Storage Stability	Stable under dry, cool, and dark conditions; recommended shelf life: 12 months from date of manufacture

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