Fiberglass non-woven tape has high strength. It is used to reinforce the joints between gypsum boards when installing drywall interior walls, and ceilings inside buildings, protection of cracks in the layer of putty. Size: Thickness 0.2mm Width: 50mm Length: 15m/roll, 30m/roll, 50m/roll, 100m/roll. Advantage: The non-woven fiberglass tape has thin thickness, and it allows you to smooth the seams with minimal difference in height between the seam and drywall. Tips: After installation of gypsum board to the base, the seams between sheets of drywall plaster filled with putty. On a wet putty layer apply fiberglass tape and pressed it into the putty. The tape is applied to the center of the seam. Then, using a spatula to smooth the tape joining sheets of drywall.