Cold Dipping method (Piece in Vertical Axis, in Static Position and Not Preheated) gives the piece a medium-low absorption level in terms of quantity of Resin, mainly on the Copper winding, while on the Core Lamination (Intra-Lamination effect) it seems not to have big advantages. Cold Dipping Technology is Worldwide largely used and is suggested to Impregnate all those electrical products where working stresses are very low or those components for which other methods can not be used (for instance: Transformers, Coils, Bobbins). The resin’s solid content after dripping is very low.