Colloidal Silica

Colloidal Silica for Investment Casting serves as core inorganic binder for ceramic shell making, widely adopted in aerospace, medical and auto precision lost-wax casting. Backed by independent nano silica R&D, we control particle size distribution to boost shell high-temperature strength and reduce casting defects. Our automated production line delivers annual output of 80,000 tons, with stable bulk stock for fast delivery. We maintain long-term cooperation with over 120 foundries across Europe, Southeast Asia and North America, ranking top sales among domestic casting-grade silica sol suppliers with consistent stable quality.

High purity colloidal silica (silica sol) with 20%–40% SiO₂, 5–20nm particle size. Stable, low sodium, acidic/alkaline grades for casting, coatings, CMP, paper. Bulk supply & custom service. Premium colloidal silica manufacturer – nano SiO₂ dispersion, uniform particle size, long shelf life. Ideal for investment casting, refractories, electronics, textiles. Global export, competitive price. Industrial grade colloidal silica liquid, CAS 7631-86-9, high stability & low VOC. Perfect binder/polishing agent for coatings, concrete, catalyst carriers. Wholesale & OEM available.

High purity colloidal silica (silica sol) with 20%–40% SiO₂, 5–20nm particle size. Stable, low sodium, acidic/alkaline grades for casting, coatings, CMP, paper. Bulk supply & custom service. Premium colloidal silica manufacturer – nano SiO₂ dispersion, uniform particle size, long shelf life. Ideal for investment casting, refractories, electronics, textiles. Global export, competitive price. Industrial grade colloidal silica liquid, CAS 7631-86-9, high stability & low VOC. Perfect binder/polishing agent for coatings, concrete, catalyst carriers. Wholesale & OEM available.

High purity colloidal silica (silica sol) with 20%–40% SiO₂, 5–20nm particle size. Stable, low sodium, acidic/alkaline grades for casting, coatings, CMP, paper. Bulk supply & custom service. Premium colloidal silica manufacturer – nano SiO₂ dispersion, uniform particle size, long shelf life. Ideal for investment casting, refractories, electronics, textiles. Global export, competitive price. Industrial grade colloidal silica liquid, CAS 7631-86-9, high stability & low VOC. Perfect binder/polishing agent for coatings, concrete, catalyst carriers. Wholesale & OEM available.

High purity colloidal silica (silica sol) with 20%–40% SiO₂, 5–20nm particle size. Stable, low sodium, acidic/alkaline grades for casting, coatings, CMP, paper. Bulk supply & custom service. Premium colloidal silica manufacturer – nano SiO₂ dispersion, uniform particle size, long shelf life. Ideal for investment casting, refractories, electronics, textiles. Global export, competitive price. Industrial grade colloidal silica liquid, CAS 7631-86-9, high stability & low VOC. Perfect binder/polishing agent for coatings, concrete, catalyst carriers. Wholesale & OEM available.

High purity colloidal silica (silica sol) with 20%–40% SiO₂, 5–20nm particle size. Stable, low sodium, acidic/alkaline grades for casting, coatings, CMP, paper. Bulk supply & custom service. Premium colloidal silica manufacturer – nano SiO₂ dispersion, uniform particle size, long shelf life. Ideal for investment casting, refractories, electronics, textiles. Global export, competitive price. Industrial grade colloidal silica liquid, CAS 7631-86-9, high stability & low VOC. Perfect binder/polishing agent for coatings, concrete, catalyst carriers. Wholesale & OEM available.