SPI Supplies Cellulose Acetate Replicating Tape, 127µm thick, 1in. x 12 ft (365x2.54 cm) Roll

The tape makes clear replicas of most surface types; instructions included with each shipment, or if lost, click on "Use Instructions" button below. The product is used primarily for TEM methods on metals, ceramics, and other surfaces that would remain inert in an acetone environment since acetone is used to soften and/or dissolve the tape prior to use. Use thick tape [0.005" (125 µm)] for rough surfaces and for removing larger loose debris particles clinging to the surface. Use thin tape [0.001" (25 µm)] for fine, irregular surfaces. Each roll is 12 feet (3.65 m) x 1 in. (2.54 cm) wide. 

Note: "Rolls" are not one continuous ribbon of tape, but the 12 feet can be made up of several shorter lengths.