A vibration castable material for molten aluminium contact.
Mix 100 weight parts powder with 15 weight parts liquid binder. Mix for 2 minutes.
Colour: Powder goes light brown when mixed with liquid, then white when fired.
It casts nicely, and can go down to 8mm thick.
It contains 95% SiO₂ and 2% Na₂O. Its main property is very low thermal expansion. It is non-wetting to aluminium.
Packaging: A 25kg bag with powder, the liquid binder inside it in a bottle.
Shelf life: Indefinite
Development no. 51509
Claimer: The above information had better be correct, since Dave Onderstall stakes his reputation on it.