www.kindinsulation.com leading Polyester shrinking tape. Polyester shrinking tape is made of a special compound fiber of thermal contraction.after binding and dried at 105℃ for 10 minutes,it will be shrunk to 70%,which is good at a solid binding and at a compatibility with transformers.in this way,it will be utilized in the transformer oil at 105℃ for a long time. email saleinsulation at kindinsulation.com