Sodium Silicate (Water Glass) – Versatile Binder & Sealer for Industrial Use in Up
Filtron Envirotech (India) is a leading manufacturer, exporter and supplier of oil drilling chemicals, specialty sodium silicate (Na₂SiO₃), commonly known as water glass. Based in Delhi, our facility produces high‑purity sodium silicate in both liquid and powder forms. Our product is exported worldwide and trusted across industries for its excellent binding, adhesive, and sealing properties.
Sodium silicate is formed by fusing sand (silica) with sodium carbonate (soda ash) at high temperatures. It is extensively used in the manufacturing of detergents, silica gel, cardboard, paper, textiles, paints, adhesives, pottery, sanitaryware, refractories, foundry molds, and wood processing industries due to its excellent binding, adhesive, bleaching, and sizing properties. It also serves as an electrolyte that keeps fine particles suspended in water without settling – making it useful in water treatment and drilling fluid applications. (Keywords: sodium silicate, water glass, industrial binder, foundry sand additive, adhesive precursor)
In drilling fluids and cementing, sodium silicate acts as a lost circulation control agent, shale stabilizer, and set accelerator for grouts. It reacts with formation fluids to form a gel plug that seals fractures and permeable zones. Available in multiple SiO₂:Na₂O ratios (2.0, 2.5, 3.0, 3.3) to suit specific applications – from high‑alkalinity detergent builders to neutral silica‑rich binders. Supplied as viscous liquid (45‑50°Bé) or solid powder. Packaged in 200 kg drums (liquid) or 25 kg bags (powder). COA, TDS, and MSDS provided. (Keywords: sodium silicate binder, water glass sealer, lost circulation material, geopolymer precursor)
Advantages:
- Effective fluid loss control – Seals fractures, voids, and permeable formations efficiently.
- High‑temperature stability – Performs reliably in HPHT drilling and industrial processes.
- Chemical resistance – Inert to most drilling fluids and industrial chemicals.
- Improves mud viscosity & filtration – Enhances carrying capacity and reduces cuttings settlement.
- Wellbore stability – Minimizes formation damage and supports continuous circulation.
- Versatile compatibility – Works with water‑based, oil‑based, and synthetic fluids.
- Blending capability – Can be combined with other LCMs for enhanced performance.
- Cost‑effective & reliable – Reduces operational downtime and improves drilling efficiency.
Sodium Silicate Liquid – Technical Data (SiO₂:Na₂O = 2.5):
| Properties | Value |
|---|---|
| Appearance | Clear to slightly hazy viscous liquid |
| Specific Gravity at 20°C | 1.40 – 1.45 |
| SiO₂ content, % | 29.0 – 31.0 |
| Na₂O content, % | 11.5 – 12.5 |
| SiO₂:Na₂O ratio | 2.5 ± 0.1 |
| Viscosity at 20°C (cP) | 300 – 800 |
Sodium Silicate Powder (Anhydrous):
| Properties | Value |
|---|---|
| Appearance | White to off‑white free‑flowing powder |
| SiO₂ content, % min. | 50.0 |
| Na₂O content, % | 20.0 – 22.0 |
| SiO₂:Na₂O ratio | 2.2 – 2.5 |
| Solubility in water | Fully soluble (forms viscous solution) |
| pH (1% solution) | 11.5 – 12.5 |