The difference between Fiberglass Cloth and Drywall Tape

Fiberglass Cloth needs to be glued before it can be considered a finished product. There are roughly two types of glue: urine glue and latex. The difference between the two types of glue is now introduced: when the protective surface layer begins to bear tension, the Fiberglass Cloth should be able to be in a state of stress as soon as possible. force state to exert its tensile function and relax the stress. Although the Fiberglass Cloth cannot prevent the plastering glue from producing the first crack when it reaches a certain tensile strain.

However, it can effectively delay the expansion time of the first crack, limit the expansion width of the first crack, and distribute stress through its longitudinal and latitudinal nodes, so that the entire plastering mortar is evenly stressed and the cracks are evenly distributed. It is generally believed that cracks with a width of less than 0.2mm are harmless cracks. For exterior wall insulation systems, the more important thing is not to prevent the occurrence of cracks.
Just like steel bars cannot prevent the cracking of concrete, whether the plastering mortar eventually cracks depends on its cracking strain. Instead, it delays the deformation time as much as possible, thereby delaying cracking and limiting the width of a single crack. When undergoing tensile deformation, the plastering glue must work in harmony with the Fiberglass Cloth. The two materials must have a good correlation. No matter how high the strength of the Fiberglass Cloth is that is not well correlated with the plastering glue, there will be cracks. It will still happen in the early stages.
The alkali-resistant Fiberglass Cloth made of urine glue has an upright, hard and brittle Fiber Glass surface that is easy to break. And it will prick your hands if you touch it with your hands, but latex is different. The Fiber Glass surface is soft and very flexible, smooth and tidy when you touch it with your hands, and it is not easy to break. Using any glue on the weight of the Fiberglass Cloth will not change it at all. For example, if it is 110 grams, whether it is urine glue or latex, its weight per square meter is still 110 grams of cloth.