product product product product product product product product product product product product product product product product
Sepiolite
Home / Products / Charring Agent / Sepiolite

Contact us

Sepiolite

Sepiolite is a naturally occurring hydrated magnesium silicate with a fibrous, needle-like crystal morphology that gives it exceptional rheological and reinforcing properties, making it a highly effective charring agent in halogen-free flame-retardant formulations.

Its elongated microfibre structure creates a three-dimensional network within the polymer matrix, promoting the formation of a mechanically robust char skeleton during combustion. This network effect significantly improves char cohesion — a critical factor for stable fire performance under forced convection conditions.

Sepiolite's high surface area and abundant silanol groups enable strong interaction with polar polymer matrices and flame-retardant additives, reducing the required loading of primary FR components while maintaining overall fire performance.

Beyond its charring function, sepiolite acts as an effective rheology modifier in coatings and adhesive systems, improving thixotropy, anti-sag performance, and pigment suspension without organic thickeners.

Available in standard and organically modified grades, with consistent fibre length distribution and controlled moisture content for reliable processing and reproducible end-use performance.

About Zhuofeng
Industrial Fire-Retardant Solutions

Jiangsu Zhuofeng New Materials Technology Co., Ltd. was established in 2020. It is a supplier specializing in the research, production, and marketing of high-performance and environmentally friendly flame retardants. The company's main products include environmentally friendly flame retardants, flame retardant masterbatches, char-forming agents, composite flame retardants, magnesium oxide, etc. Relying on mature products and process technologies as well as standardized management, the company has established several mature high-purity, ultra-fine, and cost-effective flame retardant production lines, established a flame retardant polymer material application testing laboratory, and has carried out industry-university-research cooperation to develop and optimize flame retardant products. The founding team of Zhuofeng Technology has gathered a group of talents who have long been engaged in the research, production, marketing, and management of various functional materials. They can provide users with prompt technical support for application use. At Zhuofeng Technology, we are dedicated to meeting our customers' needs by delivering stable, high-performance, and environmentally friendly flame-retardant product lines. Company strength data: Industry Experience: 6 years; Plant Scale: 18,000 square meters; Production Capacity:20000 tons.

  • 2020Year

    Establishment

  • 18000

    Plant Area

  • 20000ton

    Production Capacity

Jiangsu Zhuofeng New Materials Technology Co., Ltd. Read More
Jiangsu Zhuofeng New Materials Technology Co., Ltd.
JIANGSU ZHUOFENG NEW MATERIALSTECHNOLOGY CO., LTD.
What’s News
Industry Insights and Updates
Message Feedback
Certificate Of Honor
Industry Knowledge