Nitto (Permacel) P-50/WI125 P-50 Multi-Purpose Double Coated Cloth Carpet Tape: 1" x 75 ft, White Core: 3 inch diameter Backing/carrier: cotton cloth Adhesive: rubber/resin Release liner: paper Thickness: 19 mils (carrier, adhesive, liner) 15 mils (carrier, adhesive) 4 mils (liner)