FIELD: metallurgy.
SUBSTANCE: disclosed is a roll and electrical strip or sheet steel with at least one heat-curable layer of heat-seal varnish provided on one of its flat sides, namely, a layer of hot drying, which contains a base from epoxy resin, at least one hardener and at least one filler. To achieve high storage stability and thermal stability, that filler in layer of hot drying contains carbonate, sulphate, sulphide, silicate or metal phosphate or any mixture of several of them.
EFFECT: disclosed are roll and electrical strip or sheet steel.
15 cl, 1 dwg, 1 tbl
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