... both sides with an adherent ethylene copolymer either clear or color-coded blue.2.The copolymer exhibits excellent adhesion to the ... steel, damage never happen to the heat seal area.9bond strength of tape after putting into water, 68±1 centigrade, ... 68±1 centigrade, 168humbrella brand--no bulb, no separationWT-10311dielectric strength, DC 2KV, 1 min--without breakdown12corrosion resistance, 0.1mol/L ...