AT-1 hardener

AT - 1 hardener, brand A (TU 88 U 193.091 - 90) is developed for replacement of a hardener - dietilenglikolyuretana (DGU) used for hardening of electroinsulating varnishes of UR - 231 and URM - 2312. In comparison with DGU is steadier against effect of moisture. Besides, allows to reduce time of hardening of varnishes by 4 - 5 times. The coverings received with use of a hardener of AT - 1 on properties do not concede to coverings on the basis of varnishes with DGU. Perhaps also application of a hardener of AT - 1 for hardening of other varnishes, Krasov and enamels on the basis of polyurethane.