Isooctyl Triethoxysilane CAS 35435-21-3

1. Isooctyl triethoxysilane CAS 35435-21-3 is primarily used as a water repellent and hydrophobic surface modifier for construction materials such as concrete, stone, fiber cement boards, and masonry to protect against water and moisture damage .
2. Isooctyl Triethoxysilane serves as a water scavenger and drying agent in sealed lubricant systems and acts as an additive in paints, coatings, adhesives, and sealants to improve water resistance and adhesion .
3. In material science, Isooctyl triethoxysilane is employed as a surface modifier for fillers and pigments to improve their dispersion and compatibility within organic polymer matrices .
4. Isooctyl Triethoxysilane is also used in the formulation of hydrophobic coatings for electronic devices and as a coupling agent to enhance adhesion between inorganic substrates and organic polymers .

1. Isooctyl triethoxysilane CAS 35435-21-3 must be stored in a tightly sealed container in a cool, dry, and well-ventilated environment, away from heat, sparks, and open flames .
2. Isooctyl Triethoxysilane is moisture sensitive (Hydrolytic Sensitivity 7: reacts slowly with moisture/water) and should be stored under an inert atmosphere (nitrogen) to prevent decomposition .
3. Containers that have been opened must be carefully resealed and kept upright to prevent leakage; the product should be used as soon as possible after opening .
4. Isooctyl Triethoxysilane  is flammable with a flash point ranging from 42°C to 93°C (depending on source), and should be kept away from ignition sources with appropriate grounding and bonding precautions to prevent static discharge .

1. Isolate the spill area immediately, ensure adequate ventilation, and remove all sources of ignition; wear full personal protective equipment including chemical-resistant gloves, safety goggles, and appropriate respiratory protection .
2. Contain and collect Isooctyl Triethoxysilane using non-sparking tools and inert absorbent materials such as sand, diatomite, or universal binders, and place into suitable closed containers for disposal .
3. Avoid creating vapors or mists during cleanup to prevent respiratory exposure; use spark-proof and explosion-proof equipment .
4. Prevent Isooctyl Triethoxysilane from entering drains, water courses, or the soil; dispose of collected material according to local, state, and federal environmental regulations .

1. Isooctyl triethoxysilane CAS 35435-21-3 is a flammable liquid with a flash point of 42-93°C (closed cup) and an autoignition temperature of 265°C; under fire conditions, Isooctyl Triethoxysilane may decompose and emit toxic fumes .
2. Use dry chemical powder, carbon dioxide, alcohol-resistant foam, or water spray to extinguish fires involving the product; do NOT use a direct water jet as it may scatter burning material .
3. Firefighters Isooctyl Triethoxysilane should wear self-contained breathing apparatus in pressure-demand, MSHA/NIOSH approved, and full protective gear when handling burning Isooctyl triethoxysilane due to hazardous decomposition gases generated by thermal decomposition .
4. During combustion, may emit irritant and toxic fumes including carbon monoxide, carbon dioxide, and silicon oxides; contain fire runoff to prevent environmental contamination .