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Dry goods are coming~! Bad Fu takes you to play with colorful paint

  • Categories:Company News
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  • Time of issue:2018-08-10
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Dry goods are coming~! Bad Fu takes you to play with colorful paint

(Summary description)The days of struggle are like white horses, and the footprints of efforts are connected step by step. Dear friends in the industry, we have met again! Badfu will share with you the colorful coating solutions and common problems. The principle of water-based colorful paint The principle of colorful water-in-water can be explained by the sesame dumplings we usually eat. The sesame filling is the dispersed phase (also called the base paint)

  • Categories:Company News
  • Author:
  • Origin:
  • Time of issue:2018-08-10
  • Views:0
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The days of struggle are like white horses, and the footprints of efforts are connected step by step. Dear friends in the industry, we meet again!

Bardford shares with you the colorful coating solutions and common problems.

 The principle of water-based colorful paint 

The principle of colorful water-in-water can be explained by the sesame dumplings that we usually eat. The sesame filling is the dispersed phase (also called the base paint). The protective film formed by the glutinous rice skin is the protective glue. The sugar water is our continuous phase.

 Water-based colorful paint preparation process

 Water-based colorful paint construction process

Water-based colorful paint construction

The spray gun is the main construction tool for colorful coatings. The common model is W-77. The nozzle diameters are: φ2.0㎜, φ2.5㎜, φ3.5㎜, φ4.0㎜. Different calibers can be selected according to the size of the colored dot Generally, it is recommended to use 4.0mm nozzles for sand and colorful, and our spraying pressure is generally controlled at 0.1~0.2MPa.
 

In the actual production process, many friends have problems such as thickening and whitishness. Here are answers for everyone:

 

 Point-type control and solutions

 Flushing whitish after colorful construction

Reason analysis:

• The use of too much hydrophilic raw materials in the colorful formula leads to a significant drop in the water resistance of the paint film;

• The construction temperature is too low, or the film formation of the paint film is bad due to heavy rain;

solution:

• Choose a protective colloid with good water resistance and avoid using additives like bentonite in the continuous phase;

• Use continuous phase emulsions with good water resistance and water white recovery, such as RS-3799A and RS-3799S, and ensure that they are added in sufficient quantities; avoid harsh construction weather such as heavy rain and snow;

 The color dots are raised seriously

Reason analysis:

• Too many raw materials with increased thixotropy such as protective glue, bentonite, alkali swelling thickener, etc. are used in the base paint;

• Too much high-viscosity cellulose is used in the base paint;

• Too much powder similar to aluminum silicate is used;

solution:

• Reduce the amount of protective glue in the base paint and reduce or avoid the use of raw materials such as bentonite. The use of alkali swelling thickener in the base paint should be appropriate;

• Appropriately reduce the addition of powder, or replace powder.

 Serious thickening after colorful paint

solution:

• Use protective glue with better stability, such as S482;

•Choose an emulsion with better inertness to the protective rubber to be used as the continuous phase, such as RS-3799A and RS-3799S;

• Choose thickeners with low addition and high thickening efficiency, and do well in the addition process;

• Ensure that the concentration of protective glue is sufficient, especially when the production temperature is low;

I believe that after the above explanation, everyone has already understood the solutions to the common problems of colorful coatings. If you need a detailed paint process, please leave a message below, Badfu will invite professional colorful engineers to answer your questions.

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