Product Introduction of Matting Powder Silica by Shandong Zhonglian Chemical Co., Ltd. 1. Product Overview This product is a high-performance matting powder silica independently developed by Shandong Zhonglian Chemical Co., Ltd. It is a new type of functional material custom-developed to address the core pain points in industries such as coatings, inks, leather finishing, and plastics: "low matting efficiency, negative impact on substrate transparency, insufficient weather resistance, and easy sedimentation of traditional matting materials". Relying on advanced gas phase/precipitation production processes and precise surface porous structure control technology, the product not only has excellent matting effect and matte texture creation ability, but also possesses outstanding dispersibility, transparency and weather resistance, which can significantly improve the surface decoration and service durability of downstream products. Currently, it is widely used in wood coatings, industrial coatings, printing inks, leather finishing, plastic modification and other fields, and is exported to many countries and regions such as Europe, Southeast Asia and the Middle East, winning high recognition from customers at home and abroad. 2. Core Product Advantages 1. Excellent Matting Efficiency and Matte Texture The product adopts a special process to construct a controllable porous network structure and precise particle size distribution (primary particle size 15-80nm, agglomerate particle size 2-30μm). It achieves excellent matting effect through efficient scattering and diffuse reflection of incident light, which can reduce the 60° gloss of the coating from over 90GU to 5-60GU (adjustable according to the addition amount). The matte surface is uniform and delicate without obvious graininess. Compared with traditional matting agents such as calcium carbonate and talc powder, its matting efficiency is increased by more than 40%, and it can maintain the smooth touch of the coating surface, solving the pain point of "uneven matting and rough surface" of traditional matting materials. It is especially suitable for high-end coatings and inks that require high matte texture. 2. High Transparency and Substrate Adaptability Strictly adhering to the light transmittance standards of different industries, the product has a purity of over 99.5% and extremely low impurity content. The content of heavy metals (lead, arsenic, mercury, etc.) is ≤10ppm, and its own light transmittance exceeds 95%. After addition, it hardly affects the original transparency of the substrate, effectively avoiding the problem of "coating fogging and decreased light transmittance" caused by traditional matting agents. It fully complies with the national standard GB/T 20020-2013 "Fumed Silica" and international standards such as FDA (US Food and Drug Administration) and REACH (Registration, Evaluation, Authorization and Restriction of Chemicals). The entire production process is completed in GMP-certified workshops and ISO Class 8 clean workshops. A full-chain quality control system has been established from raw material (high-purity quartz sand) selection to finished product delivery, ensuring safe adaptation in scenarios such as high-end transparent coatings and food contact packaging inks. 3. Excellent Dispersibility and Weather Resistance Stability Relying on advanced silane coupling agent surface modification technology, the product has excellent dispersibility in organic systems such as epoxy resin, acrylic resin and polyurethane. It can be uniformly dispersed with conventional mixing equipment, not easy to agglomerate, and the dispersion efficiency is more than 30% higher than that of traditional matting powder. At the same time, it has excellent weather resistance and chemical stability, with stable performance in the range of -50℃-250℃, acid and alkali resistance, and aging resistance. After addition, it can improve the yellowing resistance and scratch resistance of the coating (increased by 20%-30%). In outdoor coating scenarios, it can maintain stable matting effect for a long time without gloss rebound due to environmental changes. 4. Full-Dimensional Customization Capability It supports full-dimensional customization services, and can customize core parameters according to the needs of different industries: matting grade (high-gloss type 50-60GU, medium-gloss type 20-50GU, matte type 5-20GU), particle size distribution (primary particle size 15-80nm, agglomerate particle size 2-30μm), surface modification type (methylsilane, epoxy silane, aminosilane, etc.) and functional characteristics (high-transparency type, weather-resistant type, wear-resistant type). Combined with the process characteristics of different fields such as coatings, inks and leather finishing, it provides personalized solutions. For example, high-transparency matte products are customized for high-end wood furniture paints, weather-resistant and anti-aging products for outdoor architectural coatings, and high-speed dispersible products for printing inks. 5. Full-Lifecycle Service Guarantee It provides "pre-sales, in-sales and after-sales" full-lifecycle technical support services. Before sales, 3-5 groups of samples with different parameters can be provided for testing according to customer needs, and a professional technical team provides application scheme design such as matting effect matching and addition ratio optimization; during sales, technical personnel can be dispatched to on-site guide key links such as feeding sequence, dispersion speed and construction process to ensure that the matting effect meets the standards; after sales, a 24-hour response mechanism is established to provide rapid solutions to problems such as uneven matting, gloss rebound and poor dispersion during use, ensuring the maximum realization of product value. 3. Production Strength Guarantee Shandong Zhonglian Chemical Co., Ltd. has been deeply engaged in the silica material industry for more than 30 years. As a national high-tech enterprise and a "Specialized, Refined, Differential and Innovative" enterprise in Shandong Province, it provides a solid guarantee for product quality. The company has 20 invention patents and 5 utility model patents, and has built a leading domestic gas phase and precipitation method matting powder silica production base with an annual output of 10,000 tons. It is equipped with advanced testing equipment such as laser particle size analyzers, gloss meters, haze meters and weather resistance test chambers, and has established 32 full-process testing procedures, covering key links such as raw material purity testing, intermediate porous structure testing, and finished product matting efficiency and transparency testing. It has obtained ISO9001 quality management system, ISO14001 environmental management system, OHSAS18001 occupational health and safety management system and GMP certification, realizing full-chain standardized control from R&D, production to quality inspection. 4. Packaging and Transportation Specifications 1. Standard Packaging Specifications Adopting a standardized layered packaging design, it provides multiple specification options: 25kg/bag (inner PE vacuum bag + outer kraft paper composite woven bag), 500kg/big bag (inner PE film + outer reinforced woven bag); for customers with bulk orders, tank truck transportation solutions can be provided to meet the needs of different order quantities and application scenarios. 2. Professional Anti-Agglomeration Protection Design Combined with the characteristics of the product's porous, moisture-absorbing and agglomeration-prone properties, a dual protection packaging scheme is adopted: Scheme 1 is inner vacuum PE bag + middle aluminum-plastic composite film + outer wear-resistant woven bag; Scheme 2 is inner inert gas-filled PE bag + outer anti-static woven bag. It can effectively isolate moisture, oxygen and dust, prevent agglomeration caused by moisture absorption during product transportation and storage, and ensure stable matting performance. 3. Storage and Transportation Requirements - Storage conditions: It should be stored in a cool, dry and ventilated airtight warehouse, avoiding direct sunlight, rain and proximity to heat sources. The relative humidity of the warehouse should be controlled below 60%; - Shelf life: The shelf life is 36 months under standard storage conditions; - Transportation attribute: The product is a non-hazardous chemical and can be delivered globally through multiple transportation methods such as sea freight, land freight and air freight. During transportation, extrusion, collision and rain soaking should be avoided. 4. Standardized Labeling Each batch of product packaging is strictly labeled with product name (matting powder silica), model, matting grade, particle size, net weight, production batch number, production date, shelf life, production license number and safety warnings; multi-language labels can be customized according to customer needs to ensure compliance with the regulatory requirements of different countries and regions. 5. Applicable Application Fields The product has a wide range of application scenarios, covering multiple core industries: - Coating field: Used as a matting agent in wood coatings (furniture paint, floor paint), architectural coatings (exterior wall paint, interior wall matte paint), automotive coatings (refinish paint, interior matte paint), industrial coatings (equipment anti-corrosion matte paint), etc., to improve the matte texture of the coating and enhance scratch resistance and weather resistance; - Ink field: Applied in printing inks (book printing ink, packaging printing ink), screen printing inks, UV inks, etc., to achieve the matte effect of inks, improve the printing quality, and not affect the drying speed and adhesion of inks; - Leather finishing field: Used in the finishing process of genuine leather and artificial leather to endow leather with matte luster and delicate touch, improve the grade of leather products, and enhance the wear resistance of the finishing layer; - Plastic modification field: Added to PP, PVC, ABS and other plastics to produce matte plastic parts (home appliance shells, automotive interior parts), realizing the matte surface of plastics and avoiding environmental problems of traditional painting processes; - Other fields: It can also be applied in cosmetics (matte loose powder, eye shadow), adhesives (matte modification) and other scenarios, adapting to the needs of different industries with its diversified characteristics. 6. Conclusion The matting powder silica of Shandong Zhonglian Chemical Co., Ltd. is positioned with the core of "precision porous control, high-transparency matte adaptation and full-chain quality control". Relying on 69 years of industry experience, advanced production technology and full-chain service system, it provides customized matting powder silica solutions for customers in various industries. The company is committed to promoting the quality upgrading of downstream industries such as coatings and inks with high-performance products, and sincerely welcomes customers at home and abroad to consult, request samples and cooperate.