The standard length is 36 yd and can be cut to widths ranging from 1/4 - 23 Inch. Longer lengths up to several times normal length are possible, dependent upon width. This tape can be imprinted. 10^6 Mohm insulation resistance. 3M polyimide film electrical tape 92 is a 1 Mil polyimide film backing with silicone adhesive. Its silicone pressure sensitive adhesive allows it to be used at 356 °F and it is UL 510 flame retardant. Like most insulated tapes, from 3M, tape 92 is available in standard and custom widths and lengths.