Use of reliable watertight insulation material in the insulation of wire harnesses is required since reliability is an important factor in automobiles. A wire harness is a system which distributes electricity to various electrical components installed in automobiles; therefore, highly effective insulation is needed in order for the electrical components to operate properly. To contribute to this demand for increased reliability in such functions of wire harnesses as banding, color identification, joint protection, and watertight insulation, Nitto Denko offers various insulation materials from vinyl adhesive tape to NITOFLON adhesive tape for branding.