Scarva Raw Materials Alumina Hydrate RM1002 From £5.21

Used primarily to promote 'stiffness' of glazes (6-10% of silica content). Increasing firing temperature and resistance to chemical attack. In larger quantities (15% of glaze) however, produces opaque and matt effects. Also used on kiln shelves as protection against glaze sticking..

Formula: AI2 (OH)6