Factory:  Corner Steyr & Alfa Sts 
Aureus Industrial sites 
RANDFONTEIN  
Email: info@keramicalia.co.za
Website: www.keramicalia.co.za
Cell: Dave  082  808 4757
Email: keraccounts@iafrica.co.za
Accounts: Myrtle Wakeford
Tel: (011) 764 2139
Tel: (011) 412 3261
P O  Box 2288
Wilro Park,1731

Hollow balls of aluminium oxide. Used for thermal insulation between 1200oC and 1900oC.

Particle size: 1mm to 2mm is kept in stock, other sizes can be ordered.

Bulk density: 0,6kg / litre.

Composition: Pure alpha alumina, 99 to 99,5%   Al203

                                                       0,18%            Na20

                                                       0,1 to 0,7%    SiO2

                                                       0,02%            Fe2O2

                                                       0,02%            CaO +MgO

Particle shape: Near spherical, allows good packing and easy flow; it can be poured into place and it can be drained out of a lining through a hole.

Melting point: Approx 1990°C.

Hardness: 9 on the Moh scale

Handling: Bubble alumina is totally inert and harmless.