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The problem of water-based coating foam is a problem of multiple factors and variables. It is necessary to comprehensively consider various factors to effectively control.

Pain-based component: The lacquer component of water-based coatings has a direct impact on the production of foam. For example, acrylic latex coatings are more likely to produce foam due to their lactated particles thinner and difficult to eliminate.

 

Additives: Various additives, such as foaming agents, wetting agents, thickeners, etc., will affect the generation and elimination of foam. Choosing the appropriate additive and its dosage is the key to control the foam.

Construction method: Different construction methods will cause different degrees of foam problems. For example, no air spraying is usually more likely to produce foam than air spraying, while flowing construction may produce more foam than impregnation construction.

Technical indicators: The technical indicators of coatings, such as pH, viscosity, etc., can also affect the production and stability of the foam.

Pains and fillers: Some organic pigments may increase foam due to their small particles. At the same time, some fillers, such as talc powder and silica, may also affect the foam.

The drying time of coating: The drying time of the coating film has a great impact on the choice of the foaming agent. For a short drying time, you need to choose a foam with stronger bubbles.

Applying method: Different coating methods also have different demands for foaming agents. For example, reverse roller coating is more difficult to bubble than roller coating.

On-site adjustment: In practical applications, many coating makers will flexibly add a foaming agent to ensure a successful trial according to the situation.