Abstract
1, 2-Bis(trimethoxysilyl)ethane (CAS No. 18406-41-2), Silane coupling agent SCA-K02W, is a new type ograno-functional silane which contains 2 silyl groups, this unique structure enable it to have a better adhension to dry/wet surfaces, stronger and weather resistance bond.

Identification
Name: , 2-Bis(trimethoxysilyl)ethane
Synonyms: 3, 3, 6, 6-Tetramethoxy-2, 7-dioxa-3, 6-disilaoctane
Molecular Formula: C8H22O6Si2
Molecular Weight: 270.43
CAS Registry Number: 18406-41-2
EINECS: 242-285-6

Properties
Density: 1.068
Boiling point: 103-104 C degree
Flash point: 103 C degree
Water solubility: REACTS

Application
1, 2-Bis(trimethoxysilyl)ethane (CAS No. 18406-41-2), Silane coupling agent SCA-K02W, has some application as below:
1. RTV silicone sealants: To enhance the adhension to the dry or wet surfaces and could form a stronger and weather resistance bond.
2. Metal surface treatment: The toxic properties of chromates have caused an environmental demand on replacement of the chromium (VI) compound coating processes (chromating). One of the suggested methods is a silane coating. SCA-K02W with bis-silyl functional has six hydrolyzable groups and are believed to be more crosslinked than triand tetra-functional analogs. The enhanced crosslinking leads to better barrier properties in anticorrosion applications.