The glass fiber self-adhesive tape is made by cutting high-quality glass fiber fabric coated with cyclic acid copolymer. Because glass fiber has a stable chemical property and is not liable to oxidate, the glass fiber 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