Better exterior wall thermal insulation grid cloth is made of platinum glass fiber as the base material, with standardized workmanship and good quality. Both the selection of materials and the weaving process are more particular, and the coating emulsion used generally has good alkali resistance. Excellent alkali resistance and high warp and weft tensile strength make the product have good hand feeling and construction compliance, which can effectively reduce the amount of plastering mortar and save costs.
The poor-quality exterior wall insulation grid cloth glass fiber is usually made of waste glass such as beer bottles, and the market price is usually around 1.00-1.60 yuan. The production process is clay crucible drawing, which is a production process prohibited by the state. The surface coating is also non-alkali-resistant emulsion. Look with the naked eye: poor-quality exterior wall insulation grid cloth is relatively rough in workmanship, and the market is mainly sold in rolls. It often has insufficient length and insufficient weight. It breaks after being folded twice. skin problems. If this kind of mesh cloth is used in the insulation layer, it will lose its strength after two years. At this time, if the mortar is knocked out and the mesh cloth is taken out, the glass fiber yarn will become powder with a light grinding.
Another type of poor-quality exterior wall insulation mesh is called mixed silk yarn, which is a better imitation of glass fiber. There is also a kind of imitation platinum glass fiber mesh cloth, which usually chooses some flat cullet glass with better transparency in the selection of waste glass, and the fiber diameter is relatively thin. Sometimes it is difficult to judge its authenticity from its appearance, but its quality cannot meet the requirements of real alkali-resistant mesh cloth in external wall insulation. Therefore, when buying mesh cloth, be sure to choose a real platinum brushed glass fiber mesh cloth with high strength and high alkali resistance.
