LEED Green Building Silica Powder for Fire Glass

High-Purity Fumed Silica （Nano Silica） for Fire-Rated Glazing Manufacturer: ANDEHU NEW MATERIALS (SHANDONG) CO., LTD 1. Product Introduction Andehu premium-grade Fumed Silica （Nano Silica） is a high-quality nano-silica dispersion manufactured under strict ISO 9001 quality management, designed for international fire glass manufacturers and facade engineering companies. Produced from high-purity raw materials via advanced ion exchange process, the product features consistent quality, low impurity levels and excellent batch-to-batch reproducibility, meeting the demanding requirements of European, Middle Eastern and Southeast Asian markets. It serves as a drop-in alternative to imported premium Fumed Silica （Nano Silica） for Class A insulating fire glass, with comparable optical, mechanical and fire performance at competitive supply cost and reliable lead times from our Shandong production base. 2. Quality & Compliance Highlights High purity specification: SiO₂ ≥99.8% on dry basis, Na₂O ≤0.3%, heavy metals <10ppm Environmental compliance: REACH SVHC compliant, RoHS 2.0 compliant, TSCA listed for US market Halal & Kosher compatible: inorganic raw material, suitable for projects with religious dietary facility requirements Fire safety: Non-combustible inorganic material, supports Class A fire rating per GB 15763.1, EN 1363 and ASTM E119 test protocols Quality system: ISO 9001 certified production, full batch traceability, COA provided with every shipment 3. Product Performance Optical clarity: ≥88% visible light transmittance; cured gel refractive index matched to soda-lime glass Particle uniformity: 60–120nm graded sizes with narrow distribution Storage stability: Minimum 12 months shelf life under proper conditions Cured properties: High bond strength, low curing shrinkage, good thermal shock resistance Curtain wall upgrade option: 1000h QUV weathering resistance grade available for exterior glazing 4. Fire Performance Mechanism Under fire exposure the aqueous silica colloid transforms through three stages: evaporative cooling, polycondensation into a 3D silica network, and final ceramization into a rigid heat-insulating layer. This provides both integrity and insulation required for Class A fire-rated glazing. 5. Standard Grade Matrix 表格 Grade SiO₂ Content Particle Size Typical Fire Rating FR-30/60 30% 60nm 0.5h FR-40/80 40% 80nm 1.0–1.5h FR-50/100 50% 100nm 2.0h FR-55/120 55% 120nm 2.5–3.0h CW-50/100 50% 100nm Curtain wall grade, 1.0–3.0h 6. Packaging & Logistics Packaging: 25kg food-grade PE drum, 200kg HDPE drum, 1000kg UN-certified IBC tote Loading: 20’FCL / 40’FCL optimized palletization Lead time: 7–15 days ex-works for standard grades Trade terms: FOB Qingdao, CIF, CIP available Documents: Commercial invoice, packing list, bill of lading, COA, MSDS, certificate of origin Manufacturer: ANDEHU NEW MATERIALS (SHANDONG) CO., LTD Location: Jinan, Shandong, China