The durability of a large-format insulation board is determined less by its chemical composition and more by how well its forming and curing processes control internal stress and structural uniformity. CCEWOOL® has specifically optimized its production route for large-size boards, enabling stable geometric accuracy in extreme industrial environments.
Most large boards in the market are assembled by stitching smaller pieces, which leads to center sagging, corner warping, and early degradation under thermal cycles.
CCEWOOL® uses full-format one-piece forming technology, depositing the fiber layer in a single step to build a continuous and uniform 3D internal structure. This avoids:
Central depression
Edge lift and surface warping
Stress-concentration deformation during thermal cycling
Dimensional change is not caused by “shrinkage” alone but by the release of internal residual stress.
CCEWOOL® combines constant-pressure forming with synchronized moisture removal, ensuring identical density and homogeneous bonding throughout the board thickness. As a result:
No local differential shrinkage
No bulging or delamination during long-term operation
Flatness maintained even under high-temperature loading
Thermal cycling tests confirm near-zero deformation under 900°C - rapid cooling conditions.
The curing phase determines long-term performance.
With zoned constant-temperature curing, CCEWOOL® develops a uniform inorganic bonding network that provides a structural memory effect:
Thickness remains stable under load
Surface flatness maintained after prolonged operation
No rebound deformation after heat-up and cool-down cycles
This engineered memory property is the foundation of the product’s long-term dimensional accuracy.
Thanks to superior dimensional stability, CCEWOOL® Large Size Ceramic Fiber Board performs exceptionally in high-demand insulation systems:
Hot-face & backup linings: maintain flatness and reduce heat loss
Pressure-bearing or horizontal structures: resist sagging and crushing, extending lining life
Large-area coverage: fewer joints, lower maintenance frequency

Spanish Customer
Cooperation years: 1 year
Ordered product: CCEWOOL Large Size Ceramic Fiber Board
Product size: 5010002000mm
A Spanish customer recently purchased CCEWOOL® Large Size Ceramic Fiber Board 50 × 1000 × 2000 mm for the first time. Installation and operational feedback confirmed excellent dimensional accuracy and surface flatness, with no warping, shrinkage, or deformation during furnace operation. The customer highlighted:
“Dimensional stability in large-format boards is the main reason we chose CCEWOOL®.”
The client also praised the professionalism of our technical support and the overall service experience.
CCEWOOL® does not simply manufacture large-size ceramic fiber boards — it makes them long-term dimensionally stable. Through one-piece large-format forming, constant-pressure density control, and precise constant-temperature curing, CCEWOOL® Large Size Ceramic Fiber Board maintains structural precision in extreme thermal environments, delivering reduced maintenance cost and longer furnace lining service life.
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