Spray Sticker-On! to the back of your decals and the application area and slide into perfect placement – no more bubbled, misaligned or wrinkled decals. Remove old decal adhesive using Sticker-Off! Each comes in a 2-oz. bottle. Available: Sticker-On!, Sticker-Off!
I applied the Sticker Off product exactly as directed on sticker residue on my aluminum boat, three times with the same result - NOTHING! On my way to the store to buy some goof-off!