The current national technical standard for exterior wall insulation mesh cloth (JG): the alkali-resistant tensile breaking strength of the glass fiber mesh in the warp and weft directions shall not be less than /, the alkali-resistant tensile breaking strength retention rate shall not be less than 50% and the weight per square meter ≥g. The alkali-resistant tensile breaking strength of JG fiberglass mesh in both the warp and weft directions shall not be less than /, the alkali-resistant tensile breaking strength retention rate shall not be less than 90%, and the weight per square meter shall be ≥ grams.
Breaking strength and alkali resistance strength retention rate:
It is generally known that the breaking strength and alkali resistance strength retention rate are important properties of fiberglass mesh. Breaking strength is inseparable from the fiberglass count or weight. At present, the weight of fiberglass mesh cloth used in exterior wall insulation systems on the market is generally around grams per square meter, and its strength is generally low. To meet this requirement, the weight per square meter needs to be above grams. Standard high-quality mesh cloth 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 a good hand feel and good construction conformity, and can greatly reduce the amount of plastering mortar.
