Formerly known as Trimaco's Floor Shell Seam Tape, X Seam Tape is engineered specifically for Trimaco's heavy duty board products. Built tough with a kraft paper backing and contractor grade adhesive, this single sided tape delivers a secure hold that lasts throughout the job. The three-inch tape is flexible, lays flat and tears easily for quick application. To use, simply roll out your board, overlap the surface protector by about half an inch and apply X Seam Tape to seal the seams.