High Modulus Sodium Silicate (3.0–3.5) — Low-Iron Premium Grade

# High Modulus Sodium Silicate — Premium Specialty Grade ## Product Overview High modulus sodium silicate (SiO₂/Na₂O ≥ 3.0) offers superior binding strength, heat resistance and chemical stability. Our specialty grades serve refractory materials, precision investment casting, catalyst production and high-temperature coatings. ## Key Features - Modulus 3.0–3.5 (up to 3.8 on request) - Low-iron and ultra-low-iron options - Excellent binding and fire resistance - Consistent batch-to-batch quality ## Applications - Refractory bricks and castables - Precision investment casting shells - Catalyst carriers and gels - Acid-resistant coatings and mortars - Geopolymer and high-tech building materials **Contact us** to discuss your modulus and purity requirements.