Interior and exterior wall putty powder can be distinguished by the following methods:
Exterior wall putty powder is made of inorganic cementitious material as the base material, with adhesive materials and other additives fine processing, its outstanding characteristics are high bonding strength, water resistance, alkali resistance, good construction performance, as the surface leveling material of outdoor buildings can be once and for all, to avoid cracking, blistering, chalking and falling off and other phenomena.
Interior wall putty powder is generally made of polymer, methyl fiber ether and other materials to refine the one-component interior wall special putty powder, with outstanding consolidation, adhesive strength and outstanding waterproof ability.
When the exterior wall putty powder is stirred with water, it will be a paste and stand for 5 minutes, and then it can be plastered on the wall, the general thickness should not exceed 2 3mm, and it can be wiped one to three times according to different requirements to increase its thickness.
According to the function of exterior wall putty, there are generally three kinds of putty for leveling, putty for special base treatment and putty for special decorative effects. Generally, leveling putty is our traditional leveling putty product, the main function of putty is to level the base layer, repair the trace defects of the base layer, in order to reduce the defects of the paint surface.
Because the exterior wall putty powder has excellent water retention ability, this can slow down its solidification, in order to prevent the occurrence of boring and shortened cracks in the early stage. Therefore, it should be noted during construction that the second layer of work must be carried out only after the first layer is dry. The temperature of the construction environment cannot be more than 5 degrees, and the construction cannot be carried out on rainy days.
The putty pulverization phenomenon can be solved by the following steps:
Remove the chalking part: If the putty layer has already been pulverized, remove the chalking part and make sure the wall surface is clean. Tools such as brushes and spatulas can be used to completely scrape off the chalking part to ensure a smooth and flat surface.
Replenish the putty layer: After the pulverized part has been removed, the putty layer needs to be refilled. Select putty materials with reliable quality, and carry out the construction of putty layers in accordance with the construction specifications. Make sure that the thickness of the putty layer is uniform, flat, and not significantly different from the surrounding wall.
Strengthen the base treatment: In order to avoid the problem of pulverization in the putty layer again, it is necessary to strengthen the base treatment. Before applying the putty layer, make sure that the wall base is firm, dry and free of looseness. Primers or wall-specific treatments can be used to enhance the adhesion and moisture resistance of the base layer.
Choose high-quality anti-chalking putty: Especially for those who are just ready to decorate, it is recommended to choose anti-chalking putty directly before decoration.
Shovel off the pulverized putty layer up to a solid plastering or structural concrete layer.
Scrape the putty on the interior wall, polish and polish, and make a two-sided latex paint finishing layer.