Thermal Insulation

A thermal insulating material is an engineering material that reduces the transfer of heat. Due to the low thermal conductivity characteristics, the material is ideal for insulating an area or the protection of equipment by controlling the surface temperatures. Thermal insulation material comes in many forms including sheet, bulk fibre or rods and bars.

Thermal Insulating Sheet

Insulating sheet is a material or mix of materials supplied in rigid board form, or a roll of material that can cut and shaped to a specific size to suit your application. Insulation sheet is supplied in various lengths, widths and thicknesses.

Where would you find them? 

Rigid boards - The boards can be used to insulate in cavity walls, in ceilings and under floors

Sheets – Insulating sheet is used in a wide range of industrial applications. Thinner than board insulation sheets are used for gasket fabrication, insulating inside furnaces, or insulating inside equipment and appliances

Rods & Bars

Thermal insulating rods and bars are made up of a mixture of thermal cement blended with minerals clays and several fibre-based materials and then are fully cured.

Bulk Fibre

Bulk fibre insulation is a mass of fibres that are used as a general infill or packing material for roofs and walls for high-temperature applications such as kilns and furnaces. Bulk fibre insulation is similar in appearance to cotton wool.

What is thermal insulation made from?

Fibreglass – Woven finely strands of silicon, glass powder and glass fragments. Care must be taken when using fibreglass. PPE must be worn.

Mineral wool – there are 3 types of mineral wool. Glass wool made from recycled glass Rock wool made from basalt Slag wool made from steel industry slag

Cellulose Insulation – Eco-friendly, made from recycled paper, cardboard and others. Compact format and good fire resistance.

Polystyrene – waterproof thermoplastic. Excellent sound and temperature insulation. There are 2 types: EPS (expanded) XEPS (Extruded) also called Styrofoam. Other materials found in a thermal insulating sheet are silica, silicate, microporous board, foil and superwool.


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Description Price Material Form Maximum Operating Temperature Length Width Thickness Density Flame Retardant Thermal Shock Resistant Thermal Conductivity Diameter
RS Stock No. 724-8906
BrandRS PRO
£44.92
Each
Units
Calcium-Magnesium Silicate Sheet +1200°C 2.8m 610mm 2mm 210kg/m³ Yes Yes 0.04 W/mK, 0.07 W/mK, 0.1 W/mK, 0.14 W/mK, 0.19 W/mK, 0.25W/mK -
RS Stock No. 724-8903
BrandRS PRO
£50.74
Each
Units
Calcium-Magnesium Silicate Sheet +1150°C 5m 610mm 6mm 128kg/m³ Yes Yes 0.04 W/mK, 0.08 W/mK, 0.14 W/mK, 0.23 W/mK, 0.34 W/mK, 0.48W/mK -
RS Stock No. 775-7466
BrandRS PRO
£19.18
1 Lot of 5
Lot(s)
Nomex Sheet +300°C 304mm 200mm 0.13mm 0.87g/cm³ - - - -
RS Stock No. 775-7469
BrandRS PRO
£30.30
1 Lot of 5
Lot(s)
Nomex Sheet +300°C 304mm 200mm 0.25mm 0.96g/cm³ - - - -
RS Stock No. 724-8921
BrandRS PRO
£27.41
Each
Units
Superwool 607 Fibre Bulk Fibre +1200°C - - 90mm 0.05 to 0.24g/cm³ Yes Yes - -
RS Stock No. 724-8909
BrandRS PRO
£62.95
Each
Units
Calcium-Magnesium Silicate Sheet +1200°C 2m 610mm 4mm 210kg/m³ Yes Yes 0.04 W/mK, 0.07 W/mK, 0.1 W/mK, 0.14 W/mK, 0.19 W/mK, 0.25W/mK -
RS Stock No. 724-8928
BrandRS PRO
£71.90
Each
Units
Superwool 607 Fibre Sheet +1150°C 595mm 495mm 25mm 350kg/m³ Yes Yes 0.05 W/mK, 0.08 W/mK, 0.11 W/mK, 0.15 W/mK, 0.2 W/mK, 0.26W/mK -
RS Stock No. 840-5517
BrandRS PRO
£57.05
Each
Units
Superwool 607 Paper Sheet +1150 (Continuous) °C, +1300 (Short Term) °C 1.2m 610mm 9mm 210kg/m³ Yes Yes 0.04 W/mK, 0.07 W/mK, 0.10 W/mK, 0.14 W/mK, 0.19 W/mK, 0.25W/mK -
RS Stock No. 103-4077
BrandRS PRO
£115.70
Each
Units
Microporous Board Sheet +950°C 595mm 495mm 20mm 200 to 250kg/m³ Yes - - -
RS Stock No. 840-5513
BrandRS PRO
£52.25
Each
Units
Superwool 607 Board Sheet +1150 (Continuous) °C, +1300 (Short Term) °C 595mm 495mm 15mm 350kg/m³ Yes Yes 0.05 W/mK, 0.08 W/mK, 0.11 W/mK, 0.15 W/mK, 0.20 W/mK, 0.26W/mK -
RS Stock No. 840-5526
BrandRS PRO
£90.92
Each
Units
Superwool 607 Fibre Sheet +1150 (Continuous) °C, +1300 (Short Term) °C 2.4m 610mm 38mm 128kg/m³ Yes Yes 0.04 W/mK, 0.08 W/mK, 0.14 W/mK, 0.23 W/mK, 0.34 W/mK, 0.483W/mK -
RS Stock No. 775-7801
BrandRS PRO
£50.94
Each
Units
Calcium-Magnesium Silicate Sheet +1260°C 2.2m 610mm 3mm 0.1602g/cm³ - Yes 0.232W/mK -
RS Stock No. 775-7810
BrandRS PRO
£61.72
Each
Units
Calcium-Magnesium Silicate Sheet +1260°C 1.5m 610mm 6mm 0.1602g/cm³ - Yes 0.232W/mK -
RS Stock No. 724-8919
BrandRS PRO
£53.07
Each
Units
Superwool 607 Fibre Sheet +1150°C 595mm 495mm 10mm 350kg/m³ Yes Yes 0.05 W/mK, 0.08 W/mK, 0.11 W/mK, 0.15 W/mK, 0.2 W/mK, 0.26W/mK -
RS Stock No. 840-5529
BrandRS PRO
£103.29
Each
Units
Superwool 607 Fibre Sheet +1150 (Continuous) °C, +1300 (Short Term) °C 1.8m 610mm 50mm 128kg/m³ Yes Yes 0.04 W/mK, 0.08 W/mK, 0.14 W/mK, 0.23 W/mK, 0.34 W/mK, 0.48W/mK -
RS Stock No. 724-8915
BrandRS PRO
£129.84
Each
Units
Calcium-Magnesium Silicate Sheet +1150°C 3.6m 610mm 25mm 128kg/m³ Yes Yes 0.04 W/mK, 0.08 W/mK, 0.14 W/mK, 0.23 W/mK, 0.34 W/mK, 0.48W/mK -
RS Stock No. 103-4078
BrandRS PRO
£162.12
Each
Units
Aerogel Miroporous Blanket Sheet +650°C 1m 700mm 10mm 0.18g/cm³ - - - -
RS Stock No. 724-8912
BrandRS PRO
£89.95
Each
Units
Calcium-Magnesium Silicate Sheet +1150°C 4.75m 610mm 13mm 128kg/m³ Yes Yes 0.04 W/mK, 0.08 W/mK, 0.14 W/mK, 0.23 W/mK, 0.34 W/mK, 0.48W/mK -
RS Stock No. 103-4058
BrandRS PRO
£61.61
Each
Units
Superwool 607 Fibre Sheet +1150°C 595mm 495mm 20mm 350kg/m³ - - - -
New
RS Stock No. 203-5179
BrandRS PRO
£165.86
Each
Units
Epoxy Glass Sheet +130°C 420mm 297mm 2.4mm 1.85g/cm³ Yes - - -
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