Water glass is referred to as an "air-hardening cementitious material" because:



It meets the definition of a cementitious material: It can harden from a liquid paste into a solid state and bind other materials together.



Its hardening process is essentially a physico-chemical process, the core of which is the precipitation and coagulation of silica gel.



This hardening process strongly relies on carbon dioxide (CO₂) in the air to trigger and complete the key chemical reaction.



It can only harden and gain strength in air. It cannot harden effectively or achieves very low strength in water or environments isolated from airaira

I. Properties of Water Glass



Chemical Properties



Water glass is alkaline and can react with acids to form silica gel and corresponding salts.



It possesses good adhesion and viscosity.



It decomposes into silicon dioxide and sodium carbonate at high temperatures.



Water glass solutions dry in air to form a hard, glass-like film.





Physical Properties



Water glass typically appears as a colorless or slightly yellow transparent liquid.



It has high viscosity and density.



It is soluble in water but insoluble in alcoholic solvents.

Sodium Silicate, also known as water glass, is a common chemical compound primarily used in making detergents, brick adhesives, and waterproofing agents. Below are five methods for preparing sodium silicate, described in detail.

In construction, sodium silicate is also employed to reinforce soil, a common practice in building foundations. When mixed with calcium chloride solution, it expands and solidifies the soil upon reaction. This method is widely adopted and frequently observed.

Sodium silicate solution, known as "water glass" ， is a versatile waterproofing agent. It enhances material durability by penetrating surfaces to fill pores, boosting density and weather resistance. In construction, it stabilizes soil by solidifying upon contact, creating robust foundations. Quick-setting variants (e.g., alum-blended formulas) excel in emergency repairs like leak sealing. While widely effective, product quality varies—reputable brands like Outao Technology ensure reliability through tested formulations. Ideal for industrial and structural applications, sodium silicate combines rapid action with long-term resilience, though selecting certified manufacturers remains critical for optimal performance.

Water glass, or liquid sodium silicate, is a stable material widely used in construction as a curing agent due to its resistance to environmental changes. Key features:





High Bonding Strength: Forms silica gel to seal wall pores, preventing leaks.



Heat Resistance: Blocks outdoor heat, ideal for hot climates.



Low Water Resistance: Dissolves easily if not fully dried; avoid application in rain.
Versatile as an adhesive, waterproofing agent, and soil stabilizer. Available from multiple manufacturers—contact us via our website for details!

When it comes to "glass water" (windshield washer fluid), drivers are very familiar with it. However, fewer people know about "sodium silicate" (water glass), and some might even wonder: Is water glass a type of "water-based glass"? Actually, no. Sodium silicate is an aqueous solution of sodium metasilicate, also known as "water glass" or "alkaline silicate." It is an exceptional industrial chemical material with a wide range of applications. Today, let’s explore some of the lesser-known uses of sodium silicate.

As a unique material, water glass (sodium silicate) is not only used for decoration but also serves as a solution for anti-seepage and leak sealing. Many everyday items develop cracks or flaws over time and require repair, which can be achieved using Otao Water Glass. Many property owners wonder: Can water glass truly seal leaks? How effective is it? Below, we provide a detailed explanation.

Sodium silicate, widely used in industrial production, is composed of sodium metasilicate. Those familiar with chemical materials may know that OuTao sodium silicate, also called "water glass," serves as an adhesive in construction to reinforce soil and geological structures. Given its extensive applications, what is the price of sodium silicate per ton, and what factors influence its pricing?

Today, water glass is widely used in almost all walks of life. Due to geological reasons, the waterproofing work of many companies has not been solved. Based on the situation of limited funds, many companies will use European ceramic water glass grouting to reduce the bonding cost and improve the stability of the foundation. So, is water glass harmful?

Do you know what the concept of water glass modulus entails? Water glass, the liquid form of sodium silicate, exhibits varying solubility depending on its modulus. As a professional in the field, understanding solubility across different moduli is essential for seamless work performance. After diving into the vast ocean of chemistry for several days, I’ve uncovered some key concepts and answers. What did I learn? I grasped the definition of water glass, its solubility, and where I acquired this knowledge—let me tell you, it’s from a website called Ou Tao.