In magnetic recording tape, the thin ribbon of polyester or other plastic material to which the oxide and back coating are applied, measured in mils. For example, the base of most professional recording tape is 1.42 mils thick.
In magnetic recording tape, the thin ribbon of polyester or other plastic material to which the oxide and back coating are applied, measured in mils. For example, the base of most professional recording tape is 1.42 mils thick.