IMPROVED EDGE COATING FOR AMORPHOUS RIBBON TRANSFORMER CORES

2148841 9411890 PCTABScor01 The present invention relates to a process for edge coating amorphous ribbon transformer cores (1) comprising the steps of applying to at least one face exclusive of the distributed gap portion (7), a first porous material having a porosity sufficient to permit a liquid having a viscosity greater than about 100,000 cps to impregnate the porous material to produce a composite structure; and applying a bonding material having a viscosity of at least about 100,000 cps to the first porous material such that the bonding material substantially contacts the core (1). Coated cores having good magnetic properties are also disclosed.