A patching material for aluminium launders etc. and for protection from corundum build up in holding furnaces. It is totally silica free. It is very sticky and sets in 10 minutes. It has very low permeability.
CHEMICAL ANALYSIS: Al₂0₃ 71%
L 0 I 7%
Cement binders are at their weakest at aluminium melting temperatures, and are useless for adhesion. Alpatch is great, especially for hot repair.
Place the Alpatch from the top of the holding bath to just below the molten metal level.
Normally supplied in 5kg repair kits with a disposable bowl and latex gloves.
Dev. No 48600