The Munari System impregnation procedure aims at resolving, first of all, the problems of porosity created during casting.

The technological process and market requirements have in fact induced designers to realise increasingly complex forms and use increasingly lightweight alloys.

All of this has made it impossible to avoid porosity in castings and has created a need to search for a procedure that allows recovery of defective elements.

With the anti-porosity treatment, recovery is possible. Castings that are excessively porous can therefore be "saved", as well as damaged elements and elements whose homogeneity, seal and quality it is desired to improve before use (such as electrical windings).