The 3M Scotch Blue Edge Lock Masking Tape delivers sharp, clean paint lines and reliable protection while you work. It uses advanced Edge‑Lock™ Technology to seal the tape edge and help block paint bleed‑through for crisp results every time. You can apply this tape to smooth or lightly textured walls, trim, baseboards, glass and tile. Then, it stays in place for up to 21 days and removes cleanly without sticky residue when you’re done. Because it resists UV and sunlight, you can use it indoors or outdoors during normal painting jobs. This tape makes surface preparation easier and helps you achieve a professional‑looking finish with less rework and fewer touch‑ups.

Key Features

• Edge‑Lock™ Technology — seals tape edge to block paint and give sharp paint lines.

• Clean removal up to 21 days — peels off without sticky residue or surface damage.

• Multi‑surface use — works on walls, trim, glass, tile and baseboards.

• Medium‑strength adhesive — holds securely but still removes cleanly.

• UV and sunlight resistant — suitable for indoor and outdoor painting.

• Ideal for sharp paint lines — helps keep clean edges on décor and trim.