Common problems and treatment methods of wall paint

Foaming, peeling
1 phenomenon shows:
1, paint film dry after the appearance of different size protrusion circular bubbles


2 cause analysis:
1, the base putty selection is not good, water expansion, the top coating film, especially the external wall is prone to such wall problems;
2, the substrate moisture is too high, drying time is not sufficient, catch up with the construction progress caused by the outer dry not dry, paint film is water vapor top up
3, the grass crack is heavier, resulting in rainwater through cracks seeping into the substrate, destroying the paint film,
4, putty layer and primer layer, primer and paint matching performance difference.
wall foaming, de-layering treatment reference scheme
buildings are exposed to outdoor environment all year round, affected by environmental temperature and humidity changes, wind and rain, water vapor, particulate matter, pollutants and

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new wall needs to be adapted to the design needs, choose the appropriate coating supporting substrate treatment, primer, paint products for decoration or protection.
walls need to be regularly maintained or refurbished to maintain the building's appearance and protection.
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