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Still worrying about the construction site? Badfu helps you solve the problem of real stone paint construction with 4 strokes!

  • Categories:Company News
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  • Time of issue:2018-08-10
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Still worrying about the construction site? Badfu helps you solve the problem of real stone paint construction with 4 strokes!

(Summary description)Today, Badfu will bring you the knowledge sharing of common problems of real stone paint construction. Many friends in the paint industry will experience whitening, yellowing, and serious sand loss when applying real stone paint. Don't worry if this happens, Budfu will answer your questions.

  • Categories:Company News
  • Author:
  • Origin:
  • Time of issue:2018-08-10
  • Views:0
Information

Today, Badfu will bring you the knowledge sharing of common problems of real stone paint construction.

Many friends in the paint industry will experience whitening, yellowing, and serious sand loss when applying real stone paint. Don't worry if this happens, Budfu will answer your questions.

 

True stone paint whitish problem in water


 

the reason

1、In order to improve the stability of emulsions, some emulsion manufacturers use too much surfactant. The presence of these surfactants will greatly reduce the water resistance of the emulsion itself.

2、The amount of emulsion added is small, so that the paint film is loose and not dense enough after drying, the water absorption rate of the paint film is relatively large, and the bonding strength is also relatively low.

3、Too many hydrophilic additives are used in production, which makes the water resistance of real stone paint worse.

4、When the temperature is lower than 5 degrees, and the relative humidity is greater than 80%, the paint film will be difficult to form a film, causing whitening phenomenon. The whitening of the paint film cannot be recovered after drying in water.

solution

1、In the selection of raw materials, silicone resin modified pure acrylic polymer with excellent stain resistance, water resistance and corrosion resistance is selected as the film-forming substance, which improves the water resistance of real stone paint from the source.

2、The amount of emulsion added is moderate to ensure that the real stone paint can form a dense paint film after construction to block the attack of rain.

3、Reasonable use of various additives.

4、Use Badrich RS-9966A and RS-707 to perfectly solve the problem of low temperature, high humidity and water resistance.

Real stone paint construction has serious sand loss:


 

the reason

1、Sand gradation is unreasonable and there is too much coarse sand.

2、The amount of emulsion added is small, and the adhesion is not strong.

3、The thin consistency of the paint can also cause sanding and splashing during spraying.

4、Causes of construction, such as improper spray pressure selection, too close spraying distance, etc. will cause serious sand loss.

solution

1、Reasonable sand gradation.

2、Add enough emulsion.

3、Adjust real stone paint to proper viscosity.

4、Adjust the appropriate construction pressure, the spraying distance is controlled at 30-50CM.

 

Real stone paint floating hair


 

 

the reason

1、The impact of the basic level of pH, PH above 10, is more prone to the risk of flowering.

2、Uneven thickness during the construction process is likely to cause flowering. In addition, the amount of real stone paint sprayed is too small, and the thin film will also cause flowering.

3、Real stone paint is excessively mixed with water, the viscosity is low, and the float floats.

4、The excessive fine powder of the true stone paint formula results in uneven spraying.

solution

1、Strictly control the basicity of the basic layer. If the basicity is too high, use an alkali-resistant sealing primer as the backing treatment to prevent the precipitation of alkaline substances.

2、The construction is strictly in accordance with the normal construction dosage, without cutting corners, and the normal theoretical coating amount of real stone paint is 3.5~5.0kg/㎡.

3、The real stone paint construction should try not to add water or add less water.

4、Adjust the proportion of fine powder (100 mesh, 120-180 mesh stone powder in the formulation system <15%)

 

Real stone paint yellowing


 

 

the reason

The manufacturer uses a styrene-acrylic emulsion with poor yellowing resistance as a binder. The emulsion will decompose after being irradiated by the sun's ultraviolet rays, and the colored substances are precipitated, which eventually causes yellowing.

 

solution

Use pure acrylic emulsion: such as Badfu RS-707 to improve yellowing resistance.

 


 

I believe that after some explanation, everyone knows the common problems of real stone paint construction. I hope you can provide valuable advice to Bardford. If you have any questions, please contact us. We will be happy to answer your questions.

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