Sodium Silicate Glass

(4 customer reviews)

Sodium silicate glass, also known as water glass, is a type of glass made from sodium oxide (Na2O) and silica (SiO2). It’s characterized by its amorphous and often brittle nature. Sodium silicate glass has a range of industrial applications, including as a binder in foundry molds and cores, a component in adhesives, sealants, and cements, and a fire-resistant coating for various materials. It’s also used in detergents, water treatment, and as a chemical precursor in various chemical processes.

  • Delivery Time: 10-40 days(the exact time depends on destination country)
  • Departure Port: Shanghai, Ningbo-Zhoushan, Qingdao, Tianjin, Dalian, Xiamen, Guangzhou(or other ports based on customer requirements)
  • Price: contact us now for your best quote

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Sodium silicate glass is known for its exceptional adhesive properties, making it an ideal ingredient in many types of industrial adhesives, sealants, and binders. Sodium silicate glass is also used in the manufacturing of detergents, where it acts as a water softener and helps to prevent the buildup of mineral deposits on surfaces.

Parameter Value
pH range 11 – 13 (alkaline)
Melting point 1,400 – 1,550 °C (depending on the specific product)
Molecular weight 122.06 g/mol (for Na2O)
Shelf life Typically 1 year or longer, depending on storage conditions
Refractive index 1.38 – 1.52 (liquid), 1.47 – 1.52 (solid)

Note: The parameter values may vary depending on the specific product and manufacturer.


Fire retardants: Sodium silicate glass is commonly used as a fire retardant. When exposed to high temperatures, it absorbs heat and forms a protective barrier between the fire and the surrounding materials.

Ceramics production: Sodium silicate glass is used as a deflocculant in ceramics production. It helps to keep ceramic particles suspended in a liquid, making them easier to work with.

Other applications: Sodium silicate glass is also used in a variety of other applications, including in the production of paper and cardboard, as a soil stabilizer, and as a preservative in the food industry.




Q: Is sodium silicate glass safe for use in food products?

A: Yes, sodium silicate glass is generally recognized as safe by the US Food and Drug Administration (FDA) and is used as a preservative in many types of food products.

Q: Can sodium silicate glass be recycled?

A: Yes, sodium silicate glass can be recycled. It is commonly used as a binder in the production of paper and cardboard, and can also be reused in the production of other industrial products.

Q: What is sodium silicate glass?

A: Sodium silicate glass is a clear, colorless liquid or solid glass made from a mixture of sodium oxide and silicon dioxide. It has a wide range of industrial applications, including as a fire retardant, an adhesive, and a coagulant in wastewater treatment.

4 reviews for Sodium Silicate Glass

  1. Sus Annie

    I was very pleased with the quality of these glasses.

  2. Bren

    The item came very well packaged & is nicely made.

  3. NolaDog

    Exactly what I expected and wanted!

  4. Erbs

    I like these glasses that are just as pictured and fast delivery.

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