Redispersible polymer powder is often seen in construction as an external wall insulation material. It is mainly composed of polystyrene particles and polymer powder, so it is named for its particularity. This kind of construction polymer powder is mainly formulated for the particularity of polystyrene particles. Mortar polymer powder has good adhesion, film-forming property, weather resistance and chemical stability.
The functional diversity of mortar redispersible polymer powder also determines that its application is relatively extensive. It is usually used for external or internal thermal insulation of external surface coverings such as external walls, polystyrene boards, and extruded boards. The covering layer of mortar powder can exert the excellent characteristics of waterproof, fireproof and heat preservation.
What are the specific steps in the construction of mortar and polymer powder? Let me briefly talk about it from 3 points:
1. We need to clean the dust on the wall first to make the surface clean and tidy;
2. The configuration ratio is as follows → mortar powder: water = 1: 0.3, we can use a mortar mixer to mix evenly when mixing;
3. We can use point paste or thin paste method to paste on the wall, so as to compress to a certain flatness;
For specific construction details, you can simply look at:
1. It is the basic treatment of mortar powder. We must ensure that the surface of the insulation board to be pasted is smooth and firm. If necessary, it can be polished with coarse sandpaper. At this time, it should be noted that the insulation board needs to be pressed tightly, and the possible board seams must be flush with the insulation surface and the polymer powder polystyrene particle insulation mortar;
2. When we configure the mortar powder, we need to add water directly, and then stir it for 5 minutes before it can be used;
3. For the construction of mortar powder, we need to use a stainless steel trowel to smooth the anti-crack mortar on the insulation board, press the glass fiber mesh cloth into the warm gypsum mortar and make it smooth. The mesh cloth should be connected and overlapped evenly. The width of the glass fiber cloth is 10cm, the glass fiber cloth needs to be embedded in the whole, and the thickness of the fiber reinforced surface layer is about 2~5cm.
Mortar polymer powder is the finished slurry after adding polymer powder. Its crack resistance is relatively solid, which can well prevent the erosion of acidic air on the wall surface, and it is not easy to pulverize and deliquescence even after being damp. On some interior and exterior wall insulation.
Post time: Jan-29-2023