1. Cleaning & Disinfectants

• Detergent Builder: It increases the cleaning power of detergents by making them more effective at removing dirt and grease, especially in hard water.
• pH Adjuster: Sodium metasilicate helps to maintain the pH level of cleaning solutions, preventing them from becoming too acidic or alkaline.
• Bleach Stabilizer: It helps to stabilize bleach solutions, preventing them from degrading or losing their effectiveness.

2. Fabric Solutions

• Dye Fixation: It helps to fix dyes to the fabric, preventing fading and ensuring more uniform color distribution.
• Detergent Builder: In fabric cleaning, it acts as a detergent builder, enhancing the cleaning power of laundry detergents.
• Desizing: it acts as a desizing agent to remove sizing materials from fabric.
• Scouring agent: it acts as a scouring agent to remove impurities.

3. Pulp & Paper Solutions

• Deinking: Sodium metasilicate helps remove ink particles from recycled paper during the deinking process. Its alkaline buffering and saponification properties help disperse ink particles, improve flotation, and prevent ink from redepositing on fibers.
• Bleaching: It's used in conjunction with hydrogen peroxide during the bleaching process, acting as a buffer and stabilizing agent. This helps stabilize the hydrogen peroxide, resulting in brighter pulp and improved efficiency.
• Sizing: Sodium metasilicate is used in sizing processes, which improve the water resistance and paper quality. It helps precipitate and fix sizing agents, improving retention and dispersing resin particles.
• Corrugated Cardboard Production: Sodium metasilicate is used as an additive in the production of corrugated cardboard.

4. Water Treatment

• Coagulant: It acts as a coagulant, helping to clump together small particles so they can be easily removed through settling or filtration.

5. Construction

• Concrete Densifier: Sodium metasilicate reacts with calcium hydroxide in concrete to form a durable, insoluble silica gel. This process helps to fill pores in the concrete, increasing its density, hardness, and resistance to wear and tear.
• Cement and Concrete Additive: Sodium metasilicate is sometimes added to cement and concrete formulations to enhance their durability and strength.

6. Metal Treatment

• Alkaline Cleaning: Sodium metasilicate forms alkaline solutions when dissolved in water, making it an effective cleaner for metal surfaces. The alkalinity helps to dissolve and remove a wide range of contaminants, including grease, oil, and dirt.
• Corrosion inhibitor: Sodium metasilicate inhibits corrosion by forming a protective film on the metal surface, thereby hindering the corrosive process. This film is composed of silicates, which act as a barrier, preventing the corrosive agent from reaching the metal.
• Foundry Sand Mixtures: Sodium metasilicate, when mixed with sand, creates a mold that can withstand high temperatures during metal casting. The resulting sand mixture forms a strong, stable structure that supports the metal during casting.