Mouldable Felts 1260°C

Mouldable Felts, up to 1,260 °C

372 Wrap-It mouldable felt combine Cotronics high purity, refractory fibres with proprietary, inorganic binders in a new and economical wet felt form. Wrap-It is cut to shape, moulded and dried to form a light weight, resilient, highly efficient, thermal insulation that is also resistant to most chemicals and solvents.

Just air dry to form strong free-standing shapes. Wrap-It will not crack or flake, has excellent thermal shock resistance and is not wet by molten metals. Wrap-It mouldable sheets are ideal for molten metal handling, thermal insulation, fire proofing, burner chambers, field repair, welding supports, fixtures and molten metal dams.

Applications of Mouldable Felts

High temperature insulation
Fibrous light insulation
Furnace linings
Welding templates
Chutes and ladles for molten metal
Prototype of vacuum moulded shapes
Industrial insulation

Technical Data of Mouldable Felts

Property		Unit	372 Wrap-It
Composition	SiO₂	%	65
	Al₂O₃		35
Density		g/cm³	0.288
Peak Temperature		°C	1,260
Melting Point		°C	1,760
Shrinkage after 24 hrs	at 700 °C	%	0.2
	at 1,200 °C		2
Thermal Conductivity	at 540 °C	W.m^-1.K^-1	0.10
	at 815 °C		0.13

Packaging of Mouldable Felts

Property	Unit	372 Wrapt-It
Item N°		372-0	372-1	372-2	372-3
Thickness	mm	3	6	12	25
Width	mm	610	610	610	610
Length	m	3.8	3.8	3.8	2.4

High temperature (1,500 °C) and very high temperature (1,650 °C) are produced on request.

Physical variables included in this documentation are provided by way of indication only and do not, under any circumstances, constitute a contractual undertaking. Please contact our technical service if you require any additional information.

372HT Moldable sheet

Cotronics 372HT is a wet moldable sheet that will adpat to all geometries. After drying, we achieve a thermal and light insulation which resists to thermal shocks. The sheet is made up of refractory fibers resistant up to 2700°C. This product is available in thickness 12mm, width 600mm and length 3800mm or 1830mm, for bigger packaging please contact us.

Full description

FAQs that can help you in this category

Carbon/graphite felt or zirconia felt: what are the differences in terms of performance?

Felts made from carbon/graphite fibre are excellent at withstanding high temperatures, and are used up to 3,000°C. These felts are stable up to 2,000°C, but only in an inert, oxygen-free environment. Otherwise, they oxidise above 300°C. Unlike carbon/graphite felts, zirconia felts are resistant to temperatures up to 2,000°C, even in the presence of oxygen in the environment.

What high-temperature felt or blanket can withstand a continuous exposure to temperatures exceeding 1,500°C?

The only felts capable of withstanding a continuous exposure to temperatures exceeding 1,500°C are ceramic (Al2O3), zirconia (ZrO2) or graphite fibre-based felts. Each felt has specific constraints: graphite felts can only be used in an inert atmosphere or in a vacuum, while zirconia felts have poor mechanical properties, and ceramic fibre felts can only resist temperatures up to 1,650°C.

The other felt families (glass, silica, biosoluble, RCF, basalt, etc.) cannot withstand a continuous exposure to more than 1,260°C.

What is the thermal conductivity of insulating blankets made of biosoluble fibre?

The material has a thermal conductivity of 0.06 W/m·K at 200°C, and 0.30 W/m·K at 1,000°C. It is substantially lower than that of conventional refractory materials (often between 1 and 2 W/m·K at these temperatures). The felts offered by Final Advanced Materials are available in several densities, ranging from 64 to 160 kg/m3. The higher the density, the lower the conductivity which can go as low as 0.20 W/m·K at 1,000°C.