Product Code: ACH Si-ALK-137
Chemical Name: n-Octyltriethoxysilane
CAS No.: 2943-75-1
ACH SI-ALK-137 is high purity, un-diluted N-octyltriethoxy-silane. When diluted with an appropriate solvent, it can be used in the formulation of water repellent products. Upon proper application, the formulated product will penetrate and provide water repellency by chemically reacting with the cementitious substrate. Treated substrates are hydro-phobic and retain their original appearance.
ACH SI-ALK-137 can also be used to improve the compatibility of mineral fillers or pigments in polyolefins or to ease their dispersion in nonpolar matrices.
ACH SI-ALK-137 is a small molecule to allow for deep penetration into the cementitious surface. This material reacts with moisture in the air and substrate in the presence of an alkaline or acidic environment to produce hydroxyl groups. These hydroxyl groups will bond with the substrate and itself to produce a hydrophobic treatment that inhibits water absorption into the substrate. An alkaline environment, such as new concrete, will catalyze the reaction and speed the formation of the hydrophobic surface.
Appearance: Clear colorless liquid
Purity, %: 98.0 Min
Color (Pt-Co): 30 Max
Density (25 oC), g/cm3: 0.8790 +/-0.0050
Refractive index (n25D): 1.4090 to 1.4190
180 kg net per drum. Other packing sizes are available upon request.