It scraped most of the old seal but took a long time to do a lousy job. The blade is not very sharp. The razor blade was much better. It's not an expensive tool, but still a waste of money.
XFasten Super Strong Duct Tape, White, 2" X 50 Yards Waterproof Duct Tape For Outdoor, Indoor, School And Industrial Use
33 Review
TapePlus Gaffer Tape - Large 2 Inch X 40 Yards Roll - Versatile Black Tape For Gaffers, Ducts, Floors, And More
31 Review
Strong & Wide White Gorilla Duct Tape, 2.88" X 25 Yd, Pack Of 1
24 Review
Industrial-Strength Double-Sided Woodworking Tape, 4"X30 Yards Yellow CNC Machine Tape For Woodworkers And Crafters - Removable Woodturner'S Tape From XFasten
52 Review