A body waste collecting device comprising a collecting pouch and an adhesive wafer for attachment to the body, said adhesive wafer comprises a backing layer, a first adhesive, a second adhesive and a release liner, wherein said second adhesive comprises a polar plasticising oil or a combination of polar plasticising oils in the content of above 10% (w/w) of the final second adhesive, and at least one polar polyethylene copolymer, wherein the content of the polyethylene copolymer is 10-50% (w/w) of the final second adhesive, the polyethylene copolymer has a melt flow index below 2 g/10 min (190° C./21.1 N), and wherein the thickness of the second adhesive is 300-700 mum