There are some problems with the quality of lightweight gypsum mortar powder. In order to reduce costs, the bonding strength of mortar powder is poor and the dosage is small, resulting in the problem of insufficient bonding strength of mortar powder. Due to the hygroscopicity of mortar powder during storage, the adhesion of mortar powder is significantly reduced, so attention should be paid to waterproofing.
Lightweight gypsum mortar should be well packaged, and the product's execution standards, weight, production date, packaging, transportation or storage precautions and product inspection certificate issued by the product manufacturer's quality inspector should be marked on the package. For the health of your family, don’t buy unfinished mortar that requires improvised preparation.
Generally speaking, we recommend that during the entire process of mortar scraping, you first check the flatness of the base surface. When the flatness exceeds 1cm, first use ready-mixed plastering mortar for rough leveling, and control the flatness within 1cm, then use underlying structural mortar for fine leveling, and finally use surface alkali-resistant mortar for fine leveling.
The construction difficulty of lightweight gypsum mortar is greater than that of lightweight gypsum mortar, and the price of lightweight gypsum mortar is also higher than that of lightweight gypsum mortar. Since lightweight gypsum mortar is wind-resistant and sun-proof, its viscosity and strength are high, but its environmental protection index is slightly lower. On the contrary, interior wall mortar is more healthy and environmentally friendly, so interior walls are not for external use and exterior walls are not for internal use.
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