6250 Mesh Calcined Kaolin - Superior Coverage for Coating Applications
Product Highlights
Ultra-Fine Particle Technology
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Standard grade: 85-90% particles below 2μm
Premium Z-1 grade: Over 92% particles below 2μm (China's finest calcined kaolin)
Exceptionally low 325 mesh residue (≤0.02%)
Significantly enhances paper smoothness and gloss
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Exceptional Mineral Purity
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Kaolinite content exceeding 97%
Ultra-low impurity levels (Fe₂O₃ < 0.5%, TiO₂ < 0.3%)
Consistent mineral composition batch-to-batch
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Superior Processing Characteristics
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Outstanding dispersion and fluidity
Viscosity concentration up to 86.7%
Enables coating formulations with >60% solids content
Ideal for high-speed paper machines (up to 1800m/min)
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Technical Advantages
Optimized Suspension Properties
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Bulk density: 0.25-0.35 t/m³
Excellent thixotropic behavior
Platelet structure enhances suspension stability
Prevents settling in storage
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Equipment-Friendly Formulation
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Low abrasion value (Mohs hardness 3-4)
Controlled mullite formation
Minimizes wear on paper machine components
Extends equipment service life
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Quality Specifications
Physical Properties
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Brightness: 90-93% (ISO)
Oil absorption: 70-90g/100g
pH value: 6.5-7.5
Moisture content: ≤0.5%
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Performance Characteristics
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Scattering coefficient: 45-50m²/kg
Porosity: 1.8-2.2ml/g
Refractive index: 1.62
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Application Benefits
Paper Coating Advantages
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Improves ink receptivity
Enhances print resolution
Reduces picking tendency
Increases opacity
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Production Efficiency
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Faster coating speeds
Reduced binder demand
Lower drying energy requirements
Improved runnability
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Packaging & Storage
25kg multi-wall paper bags
500kg FIBC bulk bags
24-month shelf life in dry conditions
Moisture-proof packaging available
Technical Support
Customized particle size distributions
Application formulation assistance
Quality consistency guarantees


TDD-Global.com is a professional China chemical B2B marketplace operated by IBI Company, dedicated to promoting global communication, business negotiation, and market expansion in the chemical industry. With a strong network of China chemical product suppliers and international buyers, TDD-Global creates a dynamic and efficient platform for sourcing, trading, and cooperation.
Under the brand name TUDUODUO, TDD-Global has built a trusted reputation among suppliers and buyers in sectors such as fine chemicals, raw materials, industrial additives, and advanced chemical solutions. We offer a wide range of services including product listing, online promotion, supply chain solutions, and international marketing support.
Our platform connects hundreds of verified China chemical suppliers with buyers worldwide, fostering transparent transactions, better business opportunities, and high-value partnerships. Whether you are looking for bulk commodities, specialty chemicals, or customized procurement services, TDD-Global is your go-to platform.
Driven by the innovative spirit of IBI Company, we are committed to building a smarter, faster, and more reliable global chemical trade ecosystem.
If you are interested in cooperation, strategic partnerships, or customized chemical sourcing, please feel free to contact us. Let's shape the future of the chemical industry together!
Company Name | Beijing TDD E-commerce Co., Ltd | Country/Region | China |
Business Type | Online Store | Company Size | 2000 |
Established | December 18, 2014 | ||
Address | Building No.3, Area 6, No.188, West of South Forth Ring Rd, Beijing, China | ||
Main Products | PVC Resin , PP , PE , Pet , Titanium Dioxide , Pigment , Car Tire | ||
International Commercial Terms(Incoterms): | FOB, CFR, CIF, FCA | ||
Terms of Payment: | LC, T/T, D/P | ||
Average Lead Time: | Peak Season Lead Time: one month, Off Season Lead Time: within 15 workdays | ||
Number of Foreign Trading Staff: | 20~40 People | ||
Main Markets: | Southeast Asia, Africa, Mid East | ||
Nearest Port: | Tianjin,Qingdao,Shanghai | ||
Import & Export Mode: | Have Own Export License |
About Beijing United Information Technology Co., Ltd.
Beijing United Information Technology Co., Ltd. (Stock Code: 603613. SH), founded in 2002 and listed on the Main Board in July 2019, is mainly engaged in industrial e-commerce and industrial Internet platforms. Based on industrial e-commerce and supported by industrial big data and industrial digitalization, the company provides online commodity trading, business information services and digital technology services of industrial products and raw materials for related industries. In terms of business model, it is called "the industrial version of Pinduoduo" and "the industrial version of JD.com".
About Beijing TDD E-commerce Co., Ltd.
Beijing TDD E-commerce Co., Ltd. (shortly named TDD Global) is the core subsidiary of Guolian Corporation (Stock Code: 603613.SH) and the first industrial Internetplatform of Duoduo Series Platforms. The company mainly engages in B28 e-commerce transaction serices of raw material and industrial products, digital supply chain serices, industrial digitalization serices and industrial big data serices, and is committed to promoting the deep integration of traditional industries and new technologies such as the Internet, Internet of Things, big data, intelligent manufacturing and block chain, etc.
Our company offers variety of products which can meet your multifarious demands. We adhere to the management principles of quot&quality first, customer first and credit-based"Since the establishment of the company and always do our best to satisfy potential needs of our customers.
Our company is sincerely willing to cooperate with enterprises from all over the world in order to realize a win-win situation since the trend of economic globalization has developed with an irresistible force. |
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Our Advantages:
Rich Experience-over 20 years in industry field
Ranges of products categories with quality guarantee
Competitive&Favourable price
7*24hours thoughtful pre-sale, on-sale, after-sale service
Overseas warehouse with all time delivery
Our services:
In order to better satisfy our customers worldwide and maintain regular customers. Our company takes raw material&industrial product B2B e-commerce transaction service, digital supply chain service, industry digitization service and industry data service as it′s primary business, focusing on promoting the deep integration between new technology and traditional industry, such as Internet, Internet of things, big data, intelligent manufacturing and blockchain.