In the industrial insulation field, people often ask: “Can Water Repellent ceramic insulation board really be waterproof?”The answer is yes — but the secret lies not in a surface coating, but in the synergy between fiber structure and material composition.In high-temperature and high-humidity applications, true “waterproofing” is not about keeping out droplets, but about maintaining hydrophobicity and structural stability under moisture, condensation, and even steam.
CCEWOOL® Water Repellent ceramic insulation board is developed on this principle — achieving a triple balance of moisture resistance, vapor protection, and heat insulation without compromising thermal performance.
The essence of waterproofing: preventing infiltration, not just surface dryness
Traditional ceramic fiber boards offer excellent insulation but easily absorb moisture due to their microporous structur Once moisture enters the pores, it leads to:
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Increased thermal conductivity and reduced insulation efficiency;
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Internal condensation and micro-cracks that cause powdering or deformation;
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Steam expansion during furnace heating, resulting in cracking or spalling.
The structural key: from “coating protection” to “fiber-based resistance”
CCEWOOL® Water Repellent ceramic insulation board combines waterproofing, thermal insulation, and fire resistance in one material.A hydrophobic agent is incorporated directly into the raw material mix, and each board undergoes a two-hour deep drying cycle on a fully automated production line to ensure complete internal dryness and overall water repellence.Tests show that at 200 °C, the hydrophobic rate exceeds 99%, and the board remains dry and dimensionally stable even after prolonged exposure to humid conditions.Unlike conventional products that rely on surface coatings, CCEWOOL® Water Repellent ceramic insulation board feature water-repellent ingredients uniformly distributed within the fiber matrix.This ensures water resistance throughout the full thickness — not just on the surface.
Each board is composed of millions of 3–5 μm high-purity fibers forming a dense three-dimensional network, which repeatedly reflects and scatters heat and moisture vapor, resulting in:
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Water vapor penetration resistance and long-term internal dryness;
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Extended heat-transfer paths for stable insulation performance;
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Thermal conductivity ≤ 0.116 W/m·K at 800 °C even under humid conditions.
This structural moisture-resistant design means it not only repels water but also resists absorption, maintaining outstanding thermal stability in damp environments.
Process reliability: manufacturing defines durability
CCEWOOL® Water Repellent ceramic insulation board is produced using vacuum-forming technology followed by a two-hour intelligent drying process for deep dehydration.The system employs a dual-curve temperature-control algorithm:a low-temperature phase ensures uniform hydrophobic-agent distribution,while a high-temperature phase enables full fiber curing and structural stabilization.This process guarantees long-term moisture stability and mechanical integrity — even under high humidity or condensation — without delamination, powdering, or failure.
Intelligent manufacturing: consistent waterproof performance
The performance stability of CCEWOOL® Water Repellent ceramic insulation board is ensured by the company’s proprietary “Ceramic Fiber Products Intelligent Manufacturing Management System V1.0.”
This patented system continuously monitors and adjusts key parameters such as melting temperature, fiberizing speed, slurry density, drying curve, and hydrophobic-agent distribution.
It automatically calibrates each batch to maintain consistent thermal conductivity, moisture resistance, and strength across different densities and thicknesses — providing reliable, standardized quality for engineering design and installation.
Engineering significance: moisture resistance as the foundation of system stability
CCEWOOL® Water Repellent ceramic insulation board are designed specifically to prevent insulation systems from absorbing moisture.They are ideal for marine applications, furnaces in humid regions, heat-treatment systems, and aluminum-industry insulation.In these settings, they provide not only waterproofing but also fire resistance, heat insulation, sound absorption, and noise reduction, significantly improving overall system efficiency.Even in coastal or rainy environments, they remain non-hygroscopic, non-corrosive, and dimensionally stable.Compared with conventional boards, the CCEWOOL® water-repellent series prevents the rise in thermal conductivity and corrosion of insulation layers caused by moisture absorption — keeping equipment safe and efficient under high humidity.
CCEWOOL® believes that real waterproofing is a system-level design — not a temporary surface treatment.Through high-purity fiber raw materials, nano-scale hydrophobic modification, and intelligent process control,
CCEWOOL® Water Repellent ceramic insulation board achieve a balance of “waterproof without heat loss, moisture-resistant without efficiency drop.”In high-temperature, high-humidity, and high-performance industrial environments, they serve not just as insulation boards, but as an invisible shield that safeguards efficiency and safety.
Post time: Nov-03-2025
