Highland Refractory's Ceramic Fiber Board is a vacuum-formed rigid insulation panel engineered for continuous service up to 1400°C. Manufactured from high-purity alumina-silica fibers and specialized inorganic binders, it combines extreme heat resistance with the structural rigidity required for kiln car decks, furnace doors, and precision burner blocks.
Indicative Price: USD 2.00 – 15.00 / kg (subject to grade, density, and order volume). Contact us for a project-specific quotation.
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Ceramic fiber board is a rigid, vacuum-formed refractory insulation panel made from high-purity alumina-silica ceramic fibers bonded with inorganic additives. It delivers the low thermal mass and excellent thermal shock resistance of ceramic fiber in a self-supporting, dimensionally stable flat-panel format — designed for furnace zones where flexible blanket would sag and dense brick would add excessive thermal mass.
Physical Properties
Key Features
Product Guide Index
A ceramic fiber board is a rigid, flat refractory insulation panel manufactured by vacuum-forming a water-based slurry of alumina-silica fiber, inorganic binders, and mineral additives. The slurry is drawn onto a forming screen under vacuum to produce a uniform wet sheet, which is then hydraulically pressed to the target thickness and dried in a controlled-atmosphere oven. Unlike extruded or cast refractory products, vacuum-formed ceramic board panels preserve the length and interlocking orientation of the original fiber, which gives the cured panel its characteristic combination of mechanical rigidity and thermal insulation performance.
The result is a product that occupies a unique position in the refractory insulation hierarchy. A ceramic fiber insulation board is physically rigid enough to span unsupported furnace openings without sagging, mechanically stable enough to support its own weight when mounted on a vertical furnace door or kiln car deck, and thermally effective enough to serve as the primary insulation barrier in furnace zones operating continuously above 1200°C. This combination of properties cannot be replicated by flexible blanket, which sags under load, or by dense refractory bricks, which are thermally massive and slow the furnace to heat.
The term ceramic fire board is commonly used in industrial procurement to describe the same vacuum-formed rigid panel. When a project specification calls for ceramic insulation board, refractory insulation board, ceramic fiber thermal insulation board, or ceramic fiber sheet, all four terms describe the same vacuum-formed product and can be matched to our standard grade range without reformulation.
Our high temperature ceramic fiber board range is available in three model grades (1260 / 1350 / 1450), classified by maximum working temperature and chemical composition. All data below are from our factory standard inspection reports. Please request a batch-specific TDS for project specification:
| Properties | Model 1260 | Model 1350 | Model 1450 (High-Zirconia) |
|---|---|---|---|
| Working Temperature (°C) ≥ | 1100°C | 1250°C | 1350°C |
| Bulk Density (kg/m3) | 220 – 500 kg/m3 (specify on order) | ||
| Compression Strength (MPa) ≥ | 0.5 MPa | ||
| Thermal Conductivity @400°C (W/m·K) | 0.085 W/m·K | ||
| Thermal Conductivity @800°C (W/m·K) | 0.132 W/m·K | ||
| Thermal Conductivity @1000°C (W/m·K) | 0.180 W/m·K | ||
| Component | Model 1260 | Model 1350 | Model 1450 |
|---|---|---|---|
| Al2O3 (%) | 42 – 43 | 52 – 53 | 35 |
| SiO2 (%) | 53 | 46 | 45 |
| ZrO2 (%) | — | — | 15 – 17 |
| Fe2O3 (%) ≤ | 1.2 | 0.3 | 0.2 |
| Na2O + K2O (%) ≤ | 0.5 | 0.3 | 0.2 |
| Standard Sheet Size (mm) | 1200 × 600 (Custom available) | ||
| Available Thicknesses (mm) | 20 / 30 / 40 / 50 (Custom available) | ||
⚠️ Engineering Note: Model 1450 achieves its high-temperature classification through a zirconia (ZrO2 15–17%) addition that inhibits fiber crystallization above 1350°C. Note that the Al2O3 content of Model 1450 (35%) is lower than Model 1350 (52–53%) because zirconia replaces a portion of the alumina while providing superior refractory performance. Always request the batch XRF analysis certificate to verify chemical composition before final acceptance.
The three major forms of ceramic fiber products — board, blanket, and paper — are manufactured from similar raw materials but serve fundamentally different engineering functions. Specifying the wrong form leads to premature failure: blanket sags where board is needed; board cracks where paper-thin flexibility is required. The following comparison clarifies the selection logic:
| Criteria | Ceramic Fiber Board | Ceramic Fiber Blanket | Ceramic Fiber Paper |
|---|---|---|---|
| Physical Form | Rigid flat panel | Flexible roll | Very thin flexible sheet |
| Bulk Density (kg/m3) | 240 – 480 | 96 – 192 | 180 – 400 |
| Mechanical Strength | High — self-supporting | Low — requires support | Very low — gasket use only |
| Abrasion Resistance | Good | Low | Very low |
| Flexibility / Conformability | None — rigid only | Excellent | Very high |
| Typical Thickness Range | 10 – 100 mm | 6 – 100 mm | 1 – 6 mm |
| Best Application | Kiln car decks, furnace doors, baffle boards | Large-area furnace wall lining, pipe wrap | Gaskets, seals, thin gap filler |
Selection rule: Specify ceramic fiber board whenever the insulation surface must be self-supporting, must resist physical contact or abrasion, or must maintain a flat, precise geometry over time. Specify blanket for large-area, cost-sensitive back-up insulation where the surface is protected by an outer working lining. Specify paper for sealing joints, wrapping thermocouple cables, and filling micro-gaps between rigid components.
Engineers and procurement managers consistently specify high temp ceramic fiber board from Highland Refractory for the following six engineering performance advantages:
Our refractory ceramic fiber board product family is deployed across the full spectrum of high-temperature industrial sectors where rigid, self-supporting insulation is required:
| Industry / Equipment | Primary Application | Recommended Grade | Key Requirement |
|---|---|---|---|
| Ceramics & Kiln Furniture | Tunnel kiln car deck, shuttle kiln crown | 1260 / HP | Load-bearing stability |
| Steel & Metallurgy | Reheat furnace door lining, ladle cover | HP / HZ | Thermal shock, 1300°C+ |
| Glass Industry | Furnace crown back-up, regenerator baffles | HZ (1400°C) | High-temp, alkali resistance |
| Forge & Heat Treatment | Forge furnace door, atmosphere furnace baffles | 1260 Grade | Thermal cycling resistance |
| Petrochemical | Vessel head insulation, duct baffle plates | STD / 1260 | Low weight, machinable |
| Power Generation | Boiler inspection door insert, expansion joint backing | STD / 1260 | EUCEB compliance option |
All Highland Refractory ceramic fiber board products are manufactured on a made-to-order basis. We do not supply household retail or individual sheet orders. Our export packaging protocol is designed to prevent corner chipping and surface contamination during sea freight:
Provide your target operating temperature, required thickness and sheet size, grade preference, and project quantity. Our engineering team will confirm the correct grade, provide a full batch TDS, and deliver a factory-direct quotation within 12 hours.
Minimum Order: 1 Pallet (1.0 Ton) | CNC Custom Cut Available | Made-to-Order
A ceramic fiber board is a rigid, vacuum-formed panel with a bulk density of 240–480 kg/m3. It is self-supporting, mechanically stable under load, and can be CNC-machined to precision shapes. A ceramic fiber blanket is a flexible rolled product with a density of 96–192 kg/m3. It conforms to curved surfaces and is used for large-area back-up insulation where rigidity is not required. Choose board when mechanical strength, surface rigidity, or CNC precision geometry is needed; choose blanket when flexibility and coverage area are the primary requirements.
Yes, in many furnace types. For zones where there is no direct contact with molten metal, corrosive slag, or abrasive product, high temperature ceramic fiber board can serve as the primary hot-face lining up to its classification temperature. In applications involving heavy abrasion, slag splash, or direct mechanical contact, a rigidizer coating applied to the board surface — or a thin castable overlay — provides additional protection.
Ceramic fiber board sheets can be cut with a sharp carving knife or scored and snapped for straight cuts. For precision or complex shapes, a CNC router, band saw, or electric fillet knife gives the cleanest edge with minimal fiber fraying. Always wear an FFP2 dust mask and safety glasses during cutting. Wet-cutting with water can suppress airborne fiber but is not normally necessary for bio-soluble grades.
Standard ceramic fiber board sheet sizes are 1000×600 mm, 1000×1000 mm, and 1200×1000 mm. Thicknesses range from 10 mm to 100 mm. We operate a dedicated CNC cutting centre that can supply any custom dimension to ±1 mm tolerance, including complex shapes, routed profiles, and pre-drilled fixing holes. Submit your CAD drawing or dimensional sketch at the quotation stage for a custom-cut price.
Yes. For EU, UK, and Australian projects where occupational health regulations require EUCEB-certified insulation, we supply alkaline-earth silicate (AES) bio-soluble grades of ceramic fiber board with a classification temperature up to 1200°C. Each pallet is accompanied by a valid EUCEB certificate, ISO 14168 dissolution rate report, and SDS. Contact us specifying the target market to confirm which grade applies to your project.
We specified Highland 1350 grade ceramic fiber board for our reheat furnace door lining. After 18 months of continuous operation, there is zero warping or structural cracking. The CNC pre-cut dimensions were accurate to within 1 mm, which saved significant on-site fitting time. Will reorder for the next maintenance campaign.
Purchased 1260 grade boards for our ceramic tunnel kiln car decks. The dimensional consistency across the full pallet was excellent — all panels within spec. Thermal performance confirmed in the first production run: outer car frame temperature dropped by 22°C compared to the old calcium silicate deck we replaced.
Good product quality and prompt documentation — received the TDS and chemical analysis certificate within 24 hours of order confirmation. Lead time was 22 working days, slightly longer than expected for the first order, but the quality was consistent with the sample submitted before the full order. Will work with Highland again.
We used 1450 grade zirconia boards for a glass furnace regenerator baffle replacement project. Thermal shock performance was outstanding — no cracking after the first 20 firing cycles. The XRF chemical certificate confirmed ZrO2 content at 16.2%, within the stated range. Packaging was also excellent — zero breakage on sea freight.
We required EUCEB-certified bio-soluble board for our petrochemical client's safety specification. Highland provided the certification documents within the same day. Product quality was uniform across the entire order. The bio-soluble grade performed identically to our previous standard grade in the 1000°C vessel insulation application.
Aluminum content 75%-80% Refractory 1770℃ or above
High alumina poly light brick is a high quality lightweight refractory material.
Low creep clay bricks have a low creep rate in high temperature environments and can maintain good shape and dimensional stability for a long time.
High alumina fine powder is a powder material with alumina (Al2O3) as the main component.
Silicon carbide plates are mainly composed of silicon carbide (SiC) as the aggregate (with a content usually ≥ 80%).
