The ceramic shell moulds manufacturing has become the technique for fabrication precision investment castings. The materials used to build the shell mould (binders and refractories) play significant role in manufacturing castings with proper quality. The binders used today generally ethyl silicate and colloidal silica binders. In Polish industry the environmental divisions are force to eliminate the use of ethyl silicate. Thus the objective of this paper to demonstrative the advantages of new shell systems based on colloidal silica binders in the specific area of application such as replacement for current use ethyl silicate binders shell system. Comparison of full characteristic of manufacturing new shell (including thermal and mechanical behaviour, permeability and porosity structure) clearly shown that new solutions are very promising in future industrial application.