ETHYLPOLYSILICATE 40
PROSILANE™ SC-5424
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ETHYLPOLYSILICATE 40
PROSILANE™ SC-5424
Product Description
Ethylpolysilicate 40 (EPS 40) is a partially hydrolyzed ethyl silicate with about 40% silicon dioxide content. It is a pale-yellow to colorless liquid and serves as a versatile precursor for silica formation. It is widely used in coatings, foundry, and industrial applications for its excellent bonding, film-forming, and water-repellent properties.
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CAS#
68412-37-3 & 11099-06-2
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ACRONYM
TEOS-40
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Supplier
Silsource Inc.
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Formula
Si(OC₂H₅)4
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Synonyms
Tetraethylorthosilicate polymer; Ethyl silicate condensate; Ethyl silicate 40; Poly(Diethoxysiloxane)Tetraethylorthosilicate; Dynasil A; ES 100; ES 28; ES 28 (ester); Ethyl orthosilicate; Ethyl silicate, ((EtO)4Si); Orthosilicic acid, tetraethyl ester; Silane, tetraethoxy-; Silicate d'ethyle [French]; Silicate tetraethylique [French]; Silicic acid, tetraethyl ester; Silicon ethoxide; Silicon tetraethoxide; Silikan L; TEOS; Tetraethoxysilane; Tetraethoxysilicon; Tetraethyl orthosilicate; Tetraethyl silicate; Tetraethyl-O-silicate
Applications or Functions
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Adhesives
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Aerospace
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Automotive
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Chemical Manufacturing
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Coatings
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Construction
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Corrosion Protection
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Coupling Agents
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Crosslinkers
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Dental
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Electronics & Electrical
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Foundry & Casting
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Hydrophobicity
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Medical Devices
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Mineral & Fiber Treatments
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Moisture Scavengers
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Mold Making
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Oxidation Resistance
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Paints
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Paints & Coatings
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Resin Additives
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Roof Coatings
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Rubber Manufacturing
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Sealants
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Semiconductors
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Silicones
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Sol Gel
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Surface Treatments
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Textiles
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Transportation
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Zinc Coatings
TYPICAL PHYSICAL PROPERTIES
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Pack Sizes
150, 170, 190, 200
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Boiling Point, °C
>150
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Density, g/cm3
1.060
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Flash Point, °C
38
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Melting Point, °C
-60
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Molecular Weight, g/mol
134.20
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OH Content, wt %
N.A.
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Purity, %
40-42
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Refractive Index, n20/D
1.398
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Viscosity, cSt
10-15
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Appearance
Colorless to pale yellow liquid
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Storage & Shelf Life
In the unopened original container, shelf life is 12 months. Keep container in a dry, temperature controlled and well-ventilated place.