Perma Expa Tape is a Tape For Crack Waterproofing & Thermoplastic Elastomer based tape available in suitable lengths for covering expansion joints, isolation joints, weak construction joints and joints between two dissimilar building materials such as concrete and stone work or concrete and steel/PVC pipes etc. PRIMARY USES Failed Expansion joints where in the sealant has failed either in or cohesion or adhesion, cause severe leakage problem in the buildings and these leakages start corroding reinforcing steel bringing down the life of the structure drastically. Similar phenomenon is observed in the joints of dissimilar building materials such as joints of concrete with steel/PVC pipes, junctions of RCC and stone slabs/blocks, many such junctions in sewage and water treatment plants, building roofs etc. Perma Expa Tape offers a permanent solution to these nagging problems. It not only water proofs these weak areas but also helps in maintaining their aesthetics and life of the structure.