Polyglas tapes are suitable for banding all kind of motor rotor coils and overhangs. They are used for tying cores, coils and columns of dry and oil transformers, for collectors, and for bracing and locking any kind of form wound coils and parts. The banding tape holds the parts safely in place during the conditions experienced during long-term operation. Polyglas tape is supplied in B-stage (semi-cured), so it is smooth and easy to apply. When curing, the resin flows to fill any voids and join the layers of tape to one homogeneous, stiff and hard mass., Poly Glas 76870 is an electrical grade, moisture resistant, parallel glass banding tape, impregnated with an uncured, high temperature, modified polyester resin. During cure, resin flow fills voids and air spaces, producing a homogeneous laminate, with a smooth resin rich surface., Poly Glas® 76870 is an electrical grade, moisture resistant, parallel glass banding tape, impregnated with an uncured, high temperature, modified polyester resin. During cure, resin flow fills voids and air spaces, producing a homogeneous laminate, with a smooth resin rich surface..