How to identify quality problems with glass yarn

The overlap width between Fiber Glass should not be less than 50mm. The Fiber Glass at the inner corners should be pressed and overlapped. The width should be ≥50mm and the width at the outer corners should be ≥200mm. During construction, the grid cloth must be laid flat, without wrinkles, and the mortar fullness should reach 100%. At the same time, it must be smoothed and straightened, and the squareness and verticality of the yin and yang corners must be maintained.

1. The market price of the worst glass yarn is usually around 1.00 yuan to 1.60 yuan. Its fiberglass fiber is usually made of waste glass from beer bottles. The production process is clay crucible drawing, which is a production process prohibited by the state. The surface coating is also not an alkali-resistant emulsion. From an intuitive point of view: the workmanship is relatively rough, and generally sold in large quantities in the market. The length is often insufficient, the weight is insufficient, and it breaks after folding twice. The joints are not strong and easy to shift, and it is easy to puncture the skin. This type of glass yarn generally loses its strength after two months when used in the insulation layer. If the mortar is knocked out and the glass yarn is taken out, the fiberglass yarn will turn into powder with just a slight grinding.
2. There is another type of fabric called imitation platinum glass yarn, also called mixed silk yarn. This is a relatively good imitation glass yarn, but it is usually made from flat broken glass with good transparency, and the fiber diameter is relatively thin. Sometimes it is difficult to judge its authenticity from the surface, but its quality cannot meet the requirements of real alkali-resistant glass yarn in exterior wall insulation.
3. Standard high-quality glass yarn uses platinum Glass Fiber as the base material. Both the selection of materials and the weaving process are very particular. The coating emulsions used have good alkali resistance. The excellent alkali resistance and high longitudinal and latitudinal tensile strength make the product have good hand feel and good construction conformity, and can greatly reduce the amount of plastering mortar.