ISO 5794-1 Silica function

Zhongqi Guangdong Silicon Material Co., Ltd. 1. Company Overview Zhongqi Guangdong Silicon Material Co., Ltd. is a national high-tech enterprise and a provincial-level "Specialized, Refined, Unique, and Innovative" enterprise with over two decades of dedicated experience in the silica industry. Headquartered in Guangdong, China, we specialize in the R&D, production, and global distribution of high-quality precipitated silica (silicon dioxide, SiO₂) serving six major industries — food, cosmetics, toothpaste, feed, pharmaceutical, and industrial applications. Our commitment to technological innovation is reflected in 17 patented technologies, a GMP-certified production base, and a comprehensive quality control system spanning 26 inspection processes from raw materials to finished products. We deliver consistent, reliable solutions to customers across Southeast Asia, Europe, the Americas, and worldwide. 2. Core Technical Advantages Our precipitated silica products are engineered to meet the most stringent global standards, delivering exceptional performance across multiple industries: Advantage Description Ultra-low heavy metal content Prevents discoloration caused by iron ion reactions (e.g., with ethyl maltol in food applications), ensuring product appearance and safety UV & heat resistance No yellowing or fading under high-temperature processing or prolonged light exposure High purity & low impurity Strict process control ensures minimal contaminants and consistent batch quality Enhanced functionality 40%+ improved flowability (anti-caking), excellent thickening, matting, and abrasion performance Customizable particle size 2–50 μm range with controlled particle size distribution to match specific application requirements GMP-certified manufacturing Pharmaceutical-grade production environment ensuring the highest quality standards 3. Application Solutions 3.1 Food Industry Our food-grade silica serves as a high-performance anti-caking agent for baking, confectionery, spices, powdered beverages, and other powdered food products. The ultra-low heavy metal content prevents discoloration reactions with ingredients like ethyl maltol, ensuring both visual appeal and safety compliance. 3.2 Cosmetics & Personal Care Cosmetic-grade silica functions as a thickener, matting agent, and texture enhancer in creams, lotions, serums, and skincare formulations. It provides excellent sensory properties, controlled viscosity, and a smooth, silky skin feel — all while meeting the strictest global cosmetic safety regulations. 3.3 Toothpaste & Oral Care Our toothpaste-grade silica acts as a mild abrasive and thickening agent with carefully controlled RDA (Relative Dentin Abrasion) values. It delivers effective cleaning without damaging enamel, and meets international dental care standards including ADA and ISO 11609. 3.4 Feed Industry Feed-grade silica works as an anti-caking and flow agent for feed additives, vitamin premixes, mineral premixes, and animal nutrition products. It improves powder flowability, prevents caking during storage, and complies with FAMI-QS and other feed safety standards. 3.5 Pharmaceutical Industry Pharmaceutical-grade silica serves as a high-purity excipient and glidant for tablet and capsule formulations. Manufactured in our GMP-certified facility, it enhances powder flow, improves content uniformity, and meets the stringent purity requirements of pharmaceutical manufacturing. 3.6 Industrial Applications Our industrial-grade precipitated silica is a versatile high-performance material for rubber, coatings, plastics, and ink industries: Rubber Industry As a reinforcing filler in rubber compounds, our silica significantly improves tensile strength, tear resistance, abrasion resistance, and elasticity. In tire manufacturing — particularly green tires and low rolling resistance tires — silica-reinforced rubber delivers better wet grip, lower rolling resistance, and improved fuel efficiency compared to traditional carbon black. Applications include footwear, industrial rubber goods, hoses, belts, and silicone rubber products. Coatings & Paints Serving as an effective matting agent, anti-settling agent, and rheology modifier in architectural coatings, industrial paints, wood coatings, and automotive finishes. It provides controlled gloss reduction, improved scratch resistance, enhanced anti-sagging properties, and better storage stability — without compromising coating transparency or film integrity. Plastics & Films Used as an anti-blocking agent (opening agent) in polyolefin films (BOPP, CPP, PE) and as a reinforcing filler in engineering plastics. It improves film surface smoothness, prevents blocking during winding and storage, and enhances mechanical properties of plastic composites. Inks & Printing Acts as a thickener, anti-settling agent, and gloss controller in printing inks. It improves ink rheology, prevents pigment settling, enhances print quality, and provides excellent rub resistance in both solvent-based and water-based ink systems. 4. Global Standards & Certifications Our products comply with a comprehensive range of international standards and certifications, ensuring regulatory acceptance across global markets: 4.1 Food Safety •FSSC 22000 •ISO 22000:2018 •ISO 9001:2015 •FDA 21 CFR attestation •GB 25576-2010 (China Food Additive Standard) •Food Additive Production License 4.2 Feed Safety •FAMI-QS •Feed Additive Production License 4.3 Cosmetics & Personal Care •EU CosIng (S787) •US CIR Safety Certification •JSCI No. 100306 (Japan) •China Inventory of Used Cosmetic Ingredients (No. 04867) •ASEAN Cosmetic Directive compliant 4.4 Dental Care •ADA Standard No. 25 •ISO 11609 4.5 Industrial Standards Standard Number Issuing Body Application Scope ISO 5794-1 International Organization for Standardization (ISO) General standard for precipitated hydrated silica (white carbon black) for rubber applications ISO 3262-19 International Organization for Standardization (ISO) Extender pigment silica for coatings and plastics ASTM D6739 American Society for Testing and Materials (ASTM) North American standard for silica used in rubber applications JIS K 6220 Japanese Industrial Standards Committee (JISC) Japanese standard for white carbon black in rubber applications JIS K 5101 Japanese Industrial Standards Committee (JISC) Japanese standard for silica used in coatings and pigments DIN 55923 German Institute for Standardization (DIN) European standard for silica in coatings and printing inks HG/T 3061 Ministry of Industry and Information Technology (China) Chinese industry standard for precipitated white carbon black in rubber applications 4.6 Halal & Kosher •SHC HALAL •OU KOSHER 4.7 Social Compliance •SEDEX 5. Quality & Production •GMP-certified production base with automated manufacturing lines •Advanced testing instruments: atomic fluorescence spectrometers, laser particle analyzers, BET surface area analyzers, and more •26-step quality inspection system from raw material intake to finished product release •National High-Tech Enterprise — recognized for technological innovation •Guangzhou "Specialized, Refined, and New" Enterprise •17 patents from the State Intellectual Property Office 6. Packaging & Logistics Standard Packaging •Sizes: 10kg / 15kg / 20kg woven bags •Waterproof design: Composite film valve bag with outer PE layer, or PE inner film bag + plastic woven bag — fully sealed against moisture intrusion Storage & Shelf Life •Store in cool, dry environment •Shelf life: 24 months from production date •Non-hazardous chemical classification Labeling •Each package marked with legal information: product type, additive limits, production license number •Custom labeling available per customer requirements Shipping •Global shipping support (sea/air) •Full export documentation and compliance support •Serving markets in Southeast Asia, Europe, Americas, and worldwide 7. Customer Support •Pre-sales: Free sampling for evaluation and testing •Technical support: Dedicated post-sales technical team for application guidance and troubleshooting •Customization: Tailored particle size, surface treatment, and packaging solutions •R&D partnership: Collaborative product development for specific customer needs Zhongqi Silicon Material — Your Trusted Global Partner in High-Purity Silica Solutions From food to pharmaceuticals, from cosmetics to industrial coatings — we deliver silica excellence across every application.