The fiberglass self-adhesive tape is made by cutting high-quality fiberglass fabric coated with cyclic acid copolymer. Because fiberglass has a stable chemical property and is not liable to oxidate, the fiberglass self-adhesive tape for joint filling has superiority. Some of its other features are as follows: Good alkali resistance High tensile strength and resistance to deformation Excellent self-adhesiveness Good smoothness Convenient application in construction If you are interested in the product, please contact me, thanks