
Ultra-Thick Viscose-Based Felt
Ultra-thick viscose-based felt has fewer fiber defects. Through controlled weaving, needle-punching and graphitization processes, it achieves low thermal conductivity, suitable density and good oxidation resistance.
Hongchang product families cover flexible carbon fiber felt, graphite felt, rigid composite felt, carbon cloth, carbon rope, graphite paper, battery felt, quartz crucibles and coating solutions for photovoltaic, semiconductor, vacuum furnace and energy applications.
Browse Hongchang material families for high-temperature insulation, thermal field protection and energy equipment use.

Ultra-thick viscose-based felt has fewer fiber defects. Through controlled weaving, needle-punching and graphitization processes, it achieves low thermal conductivity, suitable density and good oxidation resistance.

This new anti-oxidation and corrosion-resistant coating is applied to the surface of rigid felt to improve surface protection in demanding high-temperature service conditions.

Carbon cloth, also known as carbon fiber cloth or carbon fiber fabric, is woven from 1K, 3K, 6K or 12K carbon fiber tows. It offers high strength, low density and high-temperature resistance under vacuum or inert gas protection.

Graphite paper is produced from high-carbon flake graphite through chemical treatment, high-temperature expansion and rolling. It has a silver-white metallic luster, high thermal conductivity, low expansion coefficient and excellent thermal shock resistance.

Carbon rope is woven from carbon fiber and is also known as carbon fiber rope. It is a high-temperature-resistant material with excellent electrical conductivity. Common diameters include 0.5 mm, 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 8 mm and 10 mm, with cust…

Viscose-based rigid composite felt features extremely low thermal conductivity and excellent thermal insulation performance. It withstands high temperature and ablation, has low ash content and high purity, and is suitable for demanding high-temperature ins…
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