An adhesive tape assembly in combination with a substrate, said adhesive tape assembly comprising: a double-sided adhesive tape comprising front and back adhesive sides, each of said adhesive sides comprising a pressure sensitive adhesive; wherein said front adhesive side of said double-sided adhesive tape is permanently bonded to a surface of said substrate; and a delaminatable release liner in contact with, bonded to and readily removable from said back adhesive side of said double-sided adhesive tape, said delaminatable release liner comprising: a first major release surface on one side of said release liner, a second major release surface on an opposite side of said release liner, and a plane of weakness between said first and second major release surfaces, wherein said release liner can be readily delaminated lengthwise along said plane of weakness, between said first and second major release surfaces, so as to form a first delaminated layer and a second delaminated layer, with said first delaminated layer comprising said first major release surface and a first back side surface opposite said first major release surface, and said second delaminated layer comprising said second major release surface and a second back side surface opposite said second major release surface, wherein said second major release surface is in contact with, bonded to and readily removable from said back adhesive side, and said first major release surface is exposed. a double-sided adhesive tape comprising front and back adhesive sides, each of said adhesive sides comprising a pressure sensitive adhesive; wherein said front adhesive side of said double-sided adhesive tape is permanently bonded to a surface of said substrate; and a delaminatable release liner in contact with, bonded to and readily removable from said back adhesive side of said double-sided adhesive tape, said delaminatable release liner comprising: a first major release surface on one side of said release liner, a second major release surface on an opposite side of said release liner, and a plane of weakness between said first and second major release surfaces, wherein said release liner can be readily delaminated lengthwise along said plane of weakness, between said first and second major release surfaces, so as to form a first delaminated layer and a second delaminated layer, with said first delaminated layer comprising said first major release surface and a first back side surface opposite said first major release surface, and said second delaminated layer comprising said second major release surface and a second back side surface opposite said second major release surface, wherein said second major release surface is in contact with, bonded to and readily removable from said back adhesive side, and said first major release surface is exposed. a first major release surface on one side of said release liner, a second major release surface on an opposite side of said release liner, and a plane of weakness between said first and second major release surfaces, wherein said release liner can be readily delaminated lengthwise along said plane of weakness, between said first and second major release surfaces, so as to form a first delaminated layer and a second delaminated layer, with said first delaminated layer comprising said first major release surface and a first back side surface opposite said first major release surface, and said second delaminated layer comprising said second major release surface and a second back side surface opposite said second major release surface, wherein said second major release surface is in contact with, bonded to and readily removable from said back adhesive side, and said first major release surface is exposed.