First, the basic processing aspects

1. Ensure that the substrate is dry, solid, flat and free of water before construction. The strength of the substrate should be greater than or close to the strength of the putty powder.

2, before the construction of the old wall should remove paint, oil, empty shell, floating ash and do a good job of sealing, curing and alkali resistance.

3, the smoother substrate is recommended to use tile renovation trowel powder or interface agent for processing and construction.

4. Walls with severe effluent and clear water should not be directly constructed.

5. The base surface with strong water absorption or dryness should be wetted before the foundation surface is applied.

Second, the batch scraping process description

1. The construction environment temperature and dry solid process temperature should be above 5 °C, and the humidity should be below 85%.

2. Pour the product into the appropriate amount of water (1:0.38) in proportion, stir evenly until no granules, let stand for 5 minutes and stir again. (To ensure even mixing, low speed high power electric mixer should be used)

3, with a special plastering knife, batch scraping 2-3, single channel thickness 0.5mm-1.5mm, depending on the flatness of the base layer, a one-time batch scraping thick and easy to crack phenomenon.

4. Each construction interval is 4-6 hours (depending on the temperature and humidity of the environment), each lane is sub-survival, and the dryness is timely polished (48-72 hours).

5. When the climate is too dry or the wind is high, there should be maintenance measures.