Globalti
Legendary Member
If the material is exposed and is low density blocks of a brittle, creamy coloured plastery material, which is soft and easy to scratch, it's not asbestos, it's a refractory gypsum.
If it is encased in an outer shell and and is a feathery crumbly white material then it is asbestos. I can't imagine that asbestos would have been used because it doesn't have the structural strength (unless mixed into cement as a reinforcer for sheets) to be used in an exposed application, especially with the massive thermal expansion and contraction of a kiln. It would have to be enclosed in some kind of retaining material and the only thing I can think of would be steel mesh, which would simply melt in a kiln. When used to insulate pipework it was always enclosed in an outer wrapper to hold it in place.
Okay?
If it is encased in an outer shell and and is a feathery crumbly white material then it is asbestos. I can't imagine that asbestos would have been used because it doesn't have the structural strength (unless mixed into cement as a reinforcer for sheets) to be used in an exposed application, especially with the massive thermal expansion and contraction of a kiln. It would have to be enclosed in some kind of retaining material and the only thing I can think of would be steel mesh, which would simply melt in a kiln. When used to insulate pipework it was always enclosed in an outer wrapper to hold it in place.
Okay?