Post by Vortex on Jan 10, 2017 9:51:58 GMT -8
He was using 2 steel pipes with rock wool packed in between for the heat-rise, so no wonder it burned out really. I think even if he'd used ceramic blanket the result would have been the same. Both materials are rated at around 1000*C/2000*F
www.rockwool-searox.com/products/product+benefits
I was thinking of just using some rockwool fibers mixed in with perlite and furnace cement (and maybe a little fireclay) to give it a bit extra strength. Try it and see, I guess.
Fire resistance
ROCKWOOL stone wool fibres can withstand more than 1000°C without melting, whereas the binding agent is lost at temperatures in excess of 250°C. When the temperature rises above 250°C, the binder will evaporate in the zone which is exposed to 250°C or more. But the fibres will remain intact as their inbuilt cohesiveness and layering will keep the fibres together, ensuring that the material will retain its rigidity and protect the material beneath it from being affected by the fire.
Since mineral fibres are highly resistant to temperature variations, ROCKWOOL mineral wool can be used under conditions of very high temperature, provided that it is installed in such a way that mechanical stress will not alter its shape when the binder evaporates.
ROCKWOOL stone wool fibres can withstand more than 1000°C without melting, whereas the binding agent is lost at temperatures in excess of 250°C. When the temperature rises above 250°C, the binder will evaporate in the zone which is exposed to 250°C or more. But the fibres will remain intact as their inbuilt cohesiveness and layering will keep the fibres together, ensuring that the material will retain its rigidity and protect the material beneath it from being affected by the fire.
Since mineral fibres are highly resistant to temperature variations, ROCKWOOL mineral wool can be used under conditions of very high temperature, provided that it is installed in such a way that mechanical stress will not alter its shape when the binder evaporates.
www.rockwool-searox.com/products/product+benefits
I was thinking of just using some rockwool fibers mixed in with perlite and furnace cement (and maybe a little fireclay) to give it a bit extra strength. Try it and see, I guess.
