HYPER MAT is a thermo-optic aluminum silicates, produced by special calcination through induction of fine hydrous clay into the vortex of steam of hot gas. Within few seconds the material is dehydrated, the result of this special calcination process...
Hard of unifrom colour, free from all vegetable and mineral staisns , cracks buckles and other similar defeects and foreign inclusion , except that may be slightly wavy and may contain slight air inclusion in not more than on e - half of the usable...