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Rescor 740

Rescor 740 is an insulating foam that has excellent resistance to high temperatures, thermal shock, molten metals, oxidising and reducing atmospheres, erosion, most acid and alkalis etc.

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$375.19 tax incl.

Rescor 740 has been used to cast 24" diameter x 2.5" high cylindrical rings to insulate flanges in a casting furnace.  Rescor 740 easily casts 2000lb moulds (6ft in length) to be used for forming and curing composite materials.

Maximum Use Temperature 1260°C / 2300°F
Base Al2O3-SiO2
Density lb/ft3  40 
Compressive Strength psi  1500 
Modulus of Rupture psi  900 
Thermal Expansion x10-6 / °F  4.5 
Thermal Conductivity BTU-in/Hr Ft2°F 
Dielectric Strength volts/mil  100 
Volume Resistance ohm-cm 109
Colour Tan


Product #    Description                                                                                     Temp Max °C      
740-1 Rescor 740 Ceramic Cast Insulating Foam 10lb pack        2204
740-2 Rescor 740 Ceramic Cast Insualting Foam 50lb pack        2204
740-3 Rescor 740 Ceramic Cast Insulating Foam 100lb pack        2204



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