XY-325

xy 1250

XY-325

This product is manufactured using high-quality raw materials and calcination, resulting in good whiteness, moderate oil absorption, and stable physical-chemical properties. It serves as a cost-effective basic functional filler, widely used in areas with relatively lenient fineness requirements, such as architectural coatings, rubber products, daily-use ceramics, and general plastics. It effectively improves the basic properties of products while optimizing production costs.

1. Definition & Process
Calcined Kaolin 325 Mesh is a powder product processed through high-temperature calcination, characterized by relatively coarse particle size, primarily produced via calcination and preliminary classification.

2. Core Physical & Chemical Characteristics

  • Fineness: 325 Mesh (approximately 45μm), meeting the standards for numerous basic industrial applications.

  • Whiteness: High, typically in the range of 88-92%.

  • Oil Absorption: Moderate.

  • Performance Features: Possesses good chemical stability, electrical insulation, and certain reinforcing effects.

Physical & chemical indicators

Chemical Composition (%)Physical Indicators
component contenttargeted valueprojecttargeted value
SiO₂52±2whiteness≥90%
Al₂O₃45±2325 mesh≤0.5%
Fe₂O₃≤0.6fine content (D97)≤45μm
TiO₂≤1.2PH7.0±1
CaO≤0.5oil absorption(100g)40±5g
MgO≤0.2moisture content≤0.5%
K₂O≤0.1
Na₂O≤0.2

3. Key Performance Advantages

  • High Cost-Effectiveness: Offers excellent value for money, suitable for high-loading applications.

  • Property Improvement: Effectively enhances the mechanical strength, dimensional stability, and surface characteristics of substrates.

  • Process-Friendly: Moderate particle size facilitates easy dispersion and mixing in various systems.

  • Good Stability: Good acid and alkali resistance, improving the durability of final products.

4. Primary Application Fields

  • Architectural Coatings: Functional filler for interior and exterior wall paints.

  • Rubber Industry: Filling and reinforcing agent for shoe soles and general rubber products.

  • Ceramics: Raw material component for daily-use ceramics and glazes.

  • Plastics: Filling and modifying agent for products like PVC pipes and profiles.

  • Adhesives & Sealants: Used as a basic extender filler.

5. Usage Recommendations
It is recommended to conduct loading tests based on specific formulations. Conventional mixing equipment is sufficient for achieving good dispersion.

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