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Ceramic Fibre Products
Ceramic fibre is the highest-temperature insulation material in general industrial use, rated for continuous service to 1260°C, and it owes its position to two properties that no other insulation family combines.
Products in Ceramic Fibre Products
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Understanding Ceramic Fibre Products
Ceramic fibre is the highest-temperature insulation material in general industrial use, rated for continuous service to 1260°C, and it owes its position to two properties that no other insulation family combines. The first is temperature capability itself. The second, and often the more commercially important, is extremely low thermal mass: ceramic fibre stores very little heat, so on equipment that heats and cools repeatedly, far less fuel is spent warming the lining rather than the product. On a shuttle kiln or a batch furnace this can transform the fuel bill, which is why fibre conversions frequently pay back faster than any adjustment to the burner or control system. The trade-off is mechanical. Ceramic fibre is soft, does not carry load, and settles in service if joints are not correctly compressed. It belongs at the hot face and behind it, with rigid materials such as calcium silicate providing structural backup where load must be carried.
Supply & Delivery
Zenco Systems Ltd supplies Ceramic Fibre Products to industrial buyers across East Africa. Availability, packaging, transport, and documentation are confirmed by the sales team before dispatch.
Ceramic Fibre Product Forms
Ceramic fibre blanket
The most widely used form — flexible needled blanket to 1260°C for furnace and kiln linings, boiler walls, and reheat furnace roofs. Supplied in rolls and cut to width, and compressed at joints to allow for settlement in service.
Ceramic fibre cloth
Woven fabric to 1260°C for wrapping, lagging, heat shields, and protective curtains. Used where the material must conform closely to an irregular shape or be handled repeatedly.
Ceramic cloth
Woven high-temperature cloth for sealing, wrapping, and joint packing to 1260°C, including expansion gaps, doghouse openings, and inspection ports where a flexible closure is needed.
High temperature insulation blanket
Blanket insulation to 1260°C for kiln and furnace lining duty, particularly on intermittent and shuttle kilns where low thermal mass reduces fuel consumption on every firing cycle.
Modules and folded assemblies
Pre-compressed blanket assemblies anchored directly to the casing for furnace roofs and walls. Faster to install than layered blanket and better at resisting gas erosion at the hot face.
How to Choose the Right Ceramic Fibre Products
Ceramic fibre is the right answer when the service temperature exceeds what calcium silicate or mineral wool can handle, or when the equipment cycles often enough that thermal mass dominates the fuel calculation. Choose the form by geometry rather than by performance: blanket for flat and gently curved surfaces, modules where installation speed and gas erosion resistance matter, cloth and rope for joints, seals, and anything irregular. Density matters more than most buyers expect — a higher-density blanket resists gas erosion and settlement better and holds its insulating value longer in service, which usually outweighs the lower purchase price of a light grade. Where the lining must carry load, ceramic fibre is not the answer on its own; pair it with calcium silicate board as structural backup behind the fibre hot face. Above 1260°C the requirement moves out of insulation entirely and into refractory bricks and castables.
Installation & Handling Notes
- Compress blanket at joints rather than butting flush; fibre settles in service and flush joints open into direct heat-loss paths.
- Check and maintain anchor systems — most fibre lining failures trace back to anchor corrosion or distortion rather than to the fibre itself.
- Specify density deliberately. Light grades cost less but erode and settle faster under gas flow, losing performance well before a denser grade would.
- Keep fibre off load-bearing duty; back it with calcium silicate board wherever the lining carries weight or must stay dimensionally stable.
- Observe handling precautions during cutting and installation, and follow the manufacturer's guidance on ventilation and personal protective equipment.
Ceramic Fibre Compared to Other Materials
Ceramic fibre vs mineral wool
Ceramic fibre reaches 1260°C against roughly 1000°C for rockwool board, and has far lower thermal mass. Mineral wool is considerably cheaper and is the better choice for large low- and medium-temperature areas where the extra temperature capability is not needed.
Ceramic fibre vs calcium silicate
Fibre goes hotter and cycles better; calcium silicate is rigid and load-bearing. In practice they are complementary — fibre at the hot face, calcium silicate as structural backup — rather than competing options.
Ceramic fibre vs refractory brick
For a cycling kiln, a fibre lining consumes dramatically less fuel because dense brick absorbs and then wastes a large quantity of heat on every cycle. Brick remains necessary where the lining must resist abrasion, mechanical impact, slag attack, or temperatures beyond 1260°C.
Blanket vs module construction
Layered blanket is cheaper in material and suits smaller or simpler geometry. Modules install faster, resist gas erosion better at the hot face, and hold their compression more reliably over a long campaign, which usually favours them on large furnace roofs and walls.
Ceramic Fibre Products FAQs
What temperature can ceramic fibre withstand?
Standard ceramic fibre products are rated for continuous service to 1260°C. That is a continuous service rating rather than a brief peak figure, and the practical limit in a given application also depends on gas velocity, atmosphere, and whether the fibre carries any mechanical load.
Is ceramic fibre waterproof?
No. Ceramic fibre absorbs water, and wet fibre loses its insulating value because water displaces the trapped air that provides the effect. It should be stored dry and protected from ingress in service. On first heat-up after wetting, trapped moisture also has to leave the lining gradually.
Why does a ceramic fibre lining save fuel compared to brick?
Because far less of the fuel goes into heating the lining itself. Dense brick has high thermal mass and absorbs a large quantity of heat on every cycle, releasing it uselessly during cooling. Ceramic fibre stores very little, so more of the fuel reaches the product. The saving is largest on intermittent and cycling equipment.
How long does a ceramic fibre lining last?
Service life is governed mainly by gas velocity, atmosphere, and anchor condition rather than by temperature alone. Linings degrade through erosion at the hot face and through settlement that opens joints. Higher-density grades and correctly maintained anchors extend life considerably, and anchor failure is a more common root cause than fibre degradation.
Can ceramic fibre be used in contact with molten metal or glass?
No. Ceramic fibre is an insulation material with no resistance to molten metal or molten glass corrosion. Contact positions require refractory bricks or castables selected for chemical resistance; fibre belongs in the superstructure, backup, and roof insulation around those areas.
What density of ceramic fibre blanket should I specify?
Higher density resists gas erosion and settlement better and holds its insulating value longer, which usually outweighs the lower purchase price of a light grade. High gas velocity, long campaigns, and load-exposed positions all argue for a denser blanket. It is worth specifying against the service conditions rather than defaulting to the cheapest grade.
Can an existing brick kiln be converted to a ceramic fibre lining?
Frequently yes, and on intermittent kilns the fuel saving per cycle often makes conversion the better option at reline time compared with a like-for-like brick rebuild. The conversion has to account for anchoring, the structural design, and the firing atmosphere, so it is worth reviewing the specific equipment rather than assuming it transfers.
Industries Using Ceramic Fibre Products
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