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LS-D322 1,2-Bis(triethoxysilyl)ethane
CAS NO.: 16068-37-4

Name: LS-D322 1,2-Bis(triethoxysilyl)ethane
Brand: Nanjing Silfluo New Material Co., Ltd.
Availability: InStock

Silfluo LS-D322 is 1,2-Bis(triethoxysilyl)ethane, a bis-silyl functional silane commonly referred to as BTSE.

The molecule contains two triethoxysilyl groups connected by a short ethylene bridge, with no additional organofunctional group such as amino, epoxy, vinyl, or methacryloxy.

The ethoxy groups hydrolyze and condense under suitable moisture, pH, and catalyst conditions, forming siloxane networks.

Compared with methoxy-functional bis-silanes, the ethoxysilane structure shows slower hydrolysis and releases ethanol rather than methanol.

Used as crosslinking silane, sol-gel network component, or surface treatment additive in metal pretreatment systems, coatings, sealants, adhesives, and inorganic-organic hybrid formulations.

Performance equivalent to industry standards: Evonik Dynasylan BTSE, Momentive Silquest A-1230.

Where to buy CAS NO.: 16068-37-4 PDF Download

Typical Physical Properties of LS-D322 1,2-Bis(triethoxysilyl)ethane

Silfluo Code:	LS-D322
Chemical Name: Synonyms	1,2-Bis(triethoxysilyl)ethane BTSE / Hexaethoxydisilethane
CAS No. : EINECS No. :	16068-37-4 240-212-2
Molecular Formula:	C₁₄H₃₄O₆Si₂
Molecular Weight:	354.59
Appearance:	Colorless to light yellow transparent liquid
Purity (by GC, %):	95.0 min
Density (ρ20°C, g/cm³)	0.958
Refractive Index (n25/D)	Approx. 1.411
Boiling Point:	119°C
Flash Point:	113 °C closed cup
Water solubility:	Reacts slowly (requires acid/base catalysis for optimal hydrolysis)

Applications of LS-D322 1,2-Bis(triethoxysilyl)ethane

1. Silane conversion coatings and metal pretreatment

Used as silane crosslinking component in chromium-free metal pretreatment systems for aluminum, steel, galvanized steel, and other metal substrates. Verify corrosion resistance, coating adhesion, bath stability, and process window by customer testing.

2. Sol-gel coatings

Used as building block in sol-gel formulations to support siloxane network formation in inorganic-organic hybrid coatings. Verify network density, crack resistance, and film properties in the target system.

3. Sealants and adhesives

Used as crosslinking silane or adhesion-supporting additive in RTV silicone, MS polymer, SPUR, and hybrid sealant systems. Verify cure behavior, adhesion, and storage stability in the target formulation.

4. Primers and surface treatment

Used in primer systems for glass, metal oxide, mineral, and selected inorganic surfaces. Verify substrate-specific adhesion and treatment efficiency before scale-up.

5. Hybrid coating systems

Used in coating formulations requiring siloxane network formation, moisture resistance, or surface bonding to inorganic substrates. Verify compatibility, film properties, and durability in the target system.