How To Install a Vinyl Decal - Dry Install Step One: Clean & Dry Surface. ... Step Two: Tape Decal to Surface. ... Step Three: Level & Measure Decal. ... Step Four: Peel & Cut Bottom Half of Backing. ... Step Five: Apply Decal to the Surface. ... Step Six: Remove the Tape. ... Step Seven: Peel & Remove Top Half of Backing. ... Step Eight: Press and Apply.