Tesa tesaflex 4163 PVC Tape. The tesaflex 4163 from Tesa is a soft PVC tape designed for multipurpose applications. At 130 m thick, the tesaflex 4163 offers great flexibility. What is it used for The tesaflex 4163 is idea for multipurpose applications. It is made using PVC which offers great insulation properties. Example uses include; installation, repairing, marking, splicing and bundling. What type of adhesive does it use The tesaflex 4163 is single-sided and uses acrylic adhesive. The acrylic adhesive is UV stable, meaning the 4163 tape is suitable for permanent applications.