Product Name: Triethoxy(2,4,4-trimethylpentyl)silane
Other Name: (2,4,4-Trimethylpentyl)triethoxysilane
CAS No: 35435-21-3
MF: C14H32O3Si
MW: 276.48800
Density: 0.878 g/cm3
Boiling point: 215.8ºC at 760 mmHg
Flash point: 95.9ºC
Refractive index: 1.426
UN Number: UN1993
UN Proper Shipping Name: FLAMMABLE LIQUID, N.O.S.
Transport hazard class: N/A
Packing group: N/A
Specification
Appearance: Colorless transparent liquid
Assay: ≥95%
Application
Commercial buildings
Parking decks/garages
Highways
Bridge structures
Filler modification
Specification
Iso-Octyltriethoxysilane is high purity, undiluted Noctyltriethoxy-silane. Whendiluted 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.
Iso-Octyltriethoxysilane can also be used to improve the compatibility of mineral fillers or pigments in polyolefins or to ease their dispersion in nonpolar matrices.
Iso-Octyltriethoxysilane is a small molecule to allow for deep penetration into the cementitious surface. This material reacts with moisture in the air and n the substrate in the presence of an alkaline or acidic environment to produce hydroxy groups. These hydroxy groups will bond with the substrate and tself 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.
HOW TO USE
Dilution
Iso-Octyltriethoxysilane can be diluted in solvents such as alcohols, chlorinated solvents, aliphatic solvents and low molecular weight cyclic polydimethylsiloxane such as Cyclotetrasiloxane before use. Typical dilution levels are 40 percent and 20 percent Iso-Octyltriethoxysilane in a solvent.
Blends of the solvents can also be used. The evaporation rate of the diluted material can be modified depending on the type and concen-tration of the solvent. Select the proper solvent for your application, as some silane/solvent blends may darken the surface. Refer to the manufacturer ’ s data sheet for proper handling and disposal of solvents.
Application
Methods of application include airless sprayer, roller and brush. When a brush or roller is used, repeated applications should be made until the surface remains moist for a few minutes. If an airless sprayer is used, application should continue until the substrate is thoroughly saturated. Sprayers should be fitted with solvent resistant hoses and gaskets.
A test application is necessary on each surface to be treated to ensure compatibility and the desired water repellent result. Surfaces should be free of standing water, surface dirt,dust, oils and other contaminants.
Formulated Iso-Octyltriethoxysilane may be applied to damp surfaces although dry surfaces are preferred to achieve maximum penetration into the substrate.
Package: 210L Iron Drum: 180kg/drum or 1000L IBC container: 880kg/container, can also be designed according to customer requirements.
Storage: Store in cool place. Keep container tightly closed in a dry and well-ventilated place.
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