Abstract: An embossable sheet, having at least one stress-whitening layer comprising a blend of:a) at least one heat-stable polymer selected from the group consisting of polypropylene and a polymethyl alkene, said alkene having from about 3 to about 7 carbon atoms,b) at least one other polymeric material immiscible therewith, andc) an effective amount of an antioxidant, said sheet exhibiting stress-whitening which is stable at 136.degree. C. for at least about 7 days.

Abstract: An insulation displacement connector (IDC) having internal sealing material which is packed around the wires as the connection is made. The IDC has a plurality of channels for receiving the wires, and at least one metallic element providing electrical contact between the wires. A plurality of voids are in fluid communication with the channels, and the voids are filled with the sealing material, such as a mastic or silicone grease. When the IDC is moved from an open to a closed position, the metallic element makes contact between the wires, and a piston or post subsequently enters the voids, causing the sealant to flow into the channels about the wires and the contact interface.