KST COATINGS  KST000CST50-99 Contour Seam Tape,GOSSEN CORP,KST000CST50-99" /> The product is 4" x 50' Polyester Seam Tape - Heavy Duty - Uneven /Corners/Protrusion Surface Applications - Rolls Elegant and smooth finish The product is manufactured in China Covers 17 sqaure feet. Contours around protrusions. Ideal for use over rough surfaces. Heavy duty polyester. Strengthens the seal on any leak.