Interior wall putty is an important material for wall decoration, which is used to level the base and provide a good adhesion surface for the paint. However, during construction and use, some problems may occur. The following are common problems and solutions of interior wall putty:

1. The putty layer is cracked

The reason:

The putty layer is too thick and the drying shrinkage is uneven.

The base is not clean, there are cracks or loose.

The ambient temperature or wind speed is too high, resulting in rapid drying.

Solution:

Layer construction, each layer of putty thickness control at 1-2mm.

Before construction, clean the base, repair the cracks and apply the interface agent.

Control the construction environment to avoid high temperature or strong wind conditions.

2. The putty layer falls off

The reason:

Base strength is insufficient (such as sand, powder).

The base is not cleaned, there is oil or dust.

The adhesive force between putty and base is insufficient.

Solution:

Check the base strength before construction, and use reinforcement if necessary.

Clean the base thoroughly to ensure that there is no oil, dust and loose matter.

Use interfacial agent to enhance the bonding force between putty and base.

3. Foaming putty layer

The reason:

The base absorbs water too quickly, resulting in uneven evaporation of water inside the putty.

The putty is unevenly stirred and contains air.

The construction environment humidity is too high.

Solution:

Wet the base well before construction.

Pay attention to uniformity when mixing putty to avoid introducing too much air.

Construction under appropriate environmental conditions to avoid high humidity.

4. Putty layer powder

The reason:

The quality of putty is poor and the content of rubber powder is insufficient.

Polish or paint the putty before it is completely dry.

The construction environment temperature is too low, which affects the curing of putty.

Solution:

Select qualified putty products.

Ensure that the putty is completely dry before proceeding.

Construction at the appropriate temperature (5℃-35℃).

5. The putty layer is uneven

The reason:

Construction techniques are not skilled, uneven application.

The putty is too thin or too thick.

The base is uneven and not levelled in advance.

Solution:

Improve construction skills to ensure uniform application.

Adjust the putty paste proportionally to control the consistency.

Levelling of the base before construction.

6. Putty layer caustic soda

The reason:

The base layer contains alkaline substance, which evaporates out of the surface with water.

The ambient humidity is too high, causing alkali return at the base.

Solution:

Before construction, the base should be treated with alkali resistance, such as coating alkali resistant primer.

Control the humidity of the construction environment to avoid construction under humid conditions.

7. The putty layer is yellow

The reason:

Poor quality rubber powder or additives are used in the putty.

The base contains rust or other contaminants.

Solution:

Choose high quality putty products and avoid using inferior materials.

Clean the base before construction, and apply the closing primer if necessary.

8. The putty layer is difficult to sand

The reason:

The putty layer is hard, which may be the content of rubber powder is too high or the drying time is too long.

Polish the putty layer before it is completely dry.

Solution:

Choose suitable putty products to avoid excessive rubber powder content.

Make sure the putty is completely dry before sanding.

9. Poor combination of putty layer and paint

The reason:

The surface of the putty layer is too smooth, and the adhesion of the paint is insufficient.

Apply paint before the putty layer is completely dry.

Solution:

Sand the putty layer so that its surface has a certain roughness.

Make sure the putty is completely dry before applying the paint.

10. Smell after construction of putty layer

The reason:

Poor quality putty is used and contains harmful substances.

Solution:

Choose environmentally friendly putty products to ensure compliance with national standards.

11. The putty layer dries too fast or too slowly

The reason:

The ambient temperature or humidity is too high or too low.

Putty ratio is improper, too much or too little moisture.

Solution:

Control the construction environment to avoid extreme temperature and humidity conditions.

Mix the putty paste proportionally to ensure proper moisture.

12. The putty layer cracks at the joints

The reason:

The joints are not reinforced.

The putty does not dry and shrink evenly.

Solution:

Reinforce seams with mesh cloth or seam tape.

Ensure that the putty on the joint is fully dry before performing subsequent treatment.

Through the above measures, it can effectively prevent and solve the common problems in the construction of the interior wall putty, ensure that the wall is smooth and firm, and provide a good foundation for the subsequent paint construction.