PL268 Alumina Core Paint

PL268 is used on designated areas where metal does not flow properly. PL268 is used for pre-forming ceramics for the casting investment industry. To prevent ‘canalling’ defects on DS (Directionally stable metal ‘crystal’) castings using preformed cores made with a pure thin alumina coating applied by brush. A pure aluminium poly-hydroxy nitrate binder (mentioned in Russian literature as early as 1960’s) in which is suspended very finely fused 5 micron alumina and other additives.