You can do a lot   with only a little! Special Masking Tape which is resistant against the PVC-cold-welding liquid, reliably covering the floor surface within the area of the seam. A Seam Roller with ball bearings, allows easy rolling and adequate pressure to secure the special masking tape. The very thin and easy rotating blade of the Rolling Knife enables a safe and easy cutting of the special masking tape on top of the seam area.