Answer:
3M 983-326 bonds to clean, dry, non-porous rigid substrates such as painted metal panels, cured automotive finishes, bare aluminum, and stainless steel. It must be cut back 1/8 inch around rivets, hinges, and seams rather than applied across them.
3M 983-326 Conspicuity Tape is formulated for smooth, rigid exterior surfaces on commercial vehicles, trailers, tankers, and fixed industrial structures. Compatible substrates include:
- Cured commercial automotive enamel and polyurethane paint finishes
- Clean, untreated industrial bare aluminum
- Smooth stainless steel panels and rigid composite body sheets
Installation Surface Rules: The mounting substrate must be dry, sound, and completely free of wax, road oils, and diesel exhaust deposits. Tape strips must not be applied directly across panel seams, hardware, or rivets. Markings should be sliced back with at least a 1/8-inch relief margin on both sides of body joints and rivets to avoid bridging and subsequent edge lifting.
