For permanent installs that need to stay sealed. Rosco welding thread heat-bonds seams between marley panels, creating a single continuous floor surface: no tape edges to catch a shoe, no gaps to collect dust. Sold by the spool, color-matched to Rosco Adagio in Black or Gray. What it's for Permanent seam sealing on Rosco Adagio marley installs Replaces tape on long-term, professional-grade installations Color-matched to the floor for a near-invisible seam Features Commercial grade Stain resistant Chemical resistant Rectified edge 164 linear feet per spool Specifications Compatible with: Rosco Adagio marley Colors: Black, Gray Length: 164 linear feet per spool Seam welding requires a heat gun and a steady hand. We recommend that any welding be done by a professional installer to avoid damage to the floor.