Patco 5068/CLR436 5068 Greenhouse Repair Tape: 4" x 36 yd, Clear Core: 3 inch diameter Backing/carrier: low density polyethylene (ldpe) film Adhesive: acrylic Thickness: 5.5 mils (carrier, adhesive) 4.5 mils (carrier) Adhesion: 50 ounces per inch (to stainless steel test panel)