... .seam sealing tape 2.width:20mm,22mm 3.thickness:0.35mm 4.color:black,white,grey 5.usage:tent,jacket,raincoat Threeply tape ... and extend rate: 10%8) Appearance: the surface of seam sealing tape without crease, dent, dark Spot, noises or patch, no obvious ... all waterproof and anti-air-leakage Articles10) Be activated by heat, and used for waterproofing the sewn seam of rubber Fabric ...