The quality of a mould plays a decisive roll in the later production of cast aluminium components. The technology most frequently used for this purpose is the sand casting method using furan resin. In order to avoid a rough sand surface structure of the aluminium parts, the sand mould is sprayed with a special alcohol sizing using a low presure pump. Filling the pores considerably improved the surfaces of the aluminium castings. A pneumatic agitator is integrated in the material container to prevent the solids in the emulsion from settling. 


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