Speciality Chemicals

Ethyl Silicate 40

  • CAS No.11099-06-2
  • GradeIndustrial / Pharmaceutical
  • Availability● In Stock

Ethyl Silicate 40 is a high-purity liquid silicate used as a binder and crosslinker in coatings, foundry, and dental applications.

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Product Technical Details

Product Overview

Ethyl Silicate 40 represents a premium grade of hydrolyzed ethyl polysilicate, engineered for high-performance industrial applications. This colorless transparent liquid serves as a critical precursor in the formation of silicon dioxide networks through controlled hydrolysis. Upon exposure to moisture, the compound deposits silicic acid, which subsequently condenses to form a robust inorganic polymer matrix. This unique chemical behavior makes it an indispensable component for enhancing adhesion, thermal stability, and mechanical strength across diverse substrates.

Our manufacturing process ensures consistent molecular weight distribution and active content, guaranteeing reliable performance in sensitive formulations. The product is designed to bond effectively with a wide range of inorganic materials, including ceramics, glass, metals, and synthetic fibers. By facilitating the deposition of a thin SiO2 layer, Ethyl Silicate 40 significantly improves the chemical resistance and durability of the final composite material.

Key Specifications

Quality control is paramount in our production facility. Each batch undergoes rigorous testing to meet international standards for purity and physical properties. The following table outlines the typical technical specifications for this grade:

ParameterSpecification
AppearanceColorless transparent liquid
Active Content≥99.0%
Density (20°C)1.05-1.07 g/cm³
Boiling Point160°C
Flash Point62°C
Refractive Index1.397

Industrial Applications

The versatility of Ethyl Silicate 40 allows it to function as a multi-purpose additive in several high-value industries. Its primary role involves acting as a binder or crosslinking agent that cures at ambient or elevated temperatures.

  • Protective Coatings: It is extensively used as a binder in zinc-rich primers, providing exceptional corrosion resistance for steel structures and marine applications. The resulting coating forms a tight barrier against environmental degradation.
  • Precision Foundry: In the investment casting industry, this silicate serves as a binder for ceramic shells, ensuring high dimensional accuracy and surface finish for metal castings.
  • Sol-Gel Processes: As a starting material for sol-gel synthesis, it enables the production of advanced ceramic materials and thin films with tailored porosity and optical properties.
  • Dentistry and Medical: The compound acts as a hardening component in dental impression materials and as a binder for embedding media, offering biocompatibility and structural integrity.
  • Silicone Rubber Systems: It functions as a crosslinker component in cold curing silicone rubber systems, enhancing the mechanical properties and thermal stability of the cured elastomer.

Storage and Handling

To maintain optimal quality, Ethyl Silicate 40 should be stored in a cool, ventilated area away from direct sunlight and moisture sources. Containers must be kept tightly sealed when not in use to prevent premature hydrolysis. The standard packaging configuration is 200 kg per drum, though custom packaging solutions are available to meet specific logistical requirements. Proper handling procedures should be followed to ensure safety during transfer and processing operations.