Kerabrade D is a bauxite based abrasion resistant material. It is expensive and requires very intensive mixing in a planetary(bakery type) mixer. It is a high silica fume vibration castable. It is used mainly for precast shapes, since the dryout is difficult due to the very low porosity and permeability.
Maximum service temperature; 1200°C
Maximum particle size; 3mm
Bulk density after 110°C; 2,75g/cm³
Thermal conductivity at 800°C; 2,0W/mK
Cold Crushing Strength dried 110°C; 130MPa. (Rings like steel)
Mixing; Add +6% to +7% water and mix for 12 minutes in a planetary mixer. Initially the material will appear bone dry. Puddling technique may be used. Any deviation or short cuts will not achieve high strength. Setting time is 2 to 6 hours.
Drying is very tricky, over 5 days for large castings. Let us do it.
Packaging; 25kg polyethylene bags.
Shelf life; Dodgy, better to use within 2 weeks.
Development no. 72303
Claimer; This data had better be correct, since Dave Onderstall rests his reputation on it.