Wall Paint Construction Problems - Causes - Solutions

Powdering: commonly known as "flour." A thin layer of powder appears on the surface of the wall paint and it will fall off when wiped.

Cause: The dilution with excess water during construction caused the paint film to be too thin; the base of the wall was alkaline (PH value greater than 710) and the paint film was destroyed. Usually occurs in unexposed new walls; wall base and environmental humidity is too high, recoating time is short, ventilation is poor; wall base temperature is too low during construction; wall base (such as the bottom of the putty) is too loose; When the brush is not completely filmed, the film can be completely formed within 7 days after the construction; the interior wall paint is used outdoors.

Solution: remove the chalky layer; re-use high-quality paint; follow the construction specifications, do not over-dilute with water; if necessary, use proper primer to seal the wall base to improve the paint adhesion. It is recommended to use Dulux primer series; ensure that the construction environment meets the construction requirements.

Uneven gloss: Wall paint uneven gloss, light and dark distribution, often appear in mercerized, semi-gloss finish products.

Causes: uneven basement wall thickness; uneven thickness of primer and finish; dry spray applied locally for spraying; different construction tools for the same wall; different batches for the same wall; not when the paint is wet The gaps connecting the brush marks result in noticeable marks, ie, they do not effectively "wet up"; the temperature of the wall base is too high, or the paint dries too quickly.

Solution: Use a primer, especially a local repair site, and apply a primer to the surrounding area before applying a primer; whether it is a primer or a topcoat, make sure that the thickness of each layer is uniform and there is no leakage; ensure that Use uniform construction tools. Use the same batch of products on the same wall to ensure wet connection in the grid area; ensure that the construction conditions and construction process meet the construction requirements; select the appropriate thinner according to different climates to adjust the paint drying time.

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