Key points for quality control of wall putty construction

The quality of putty construction is a key link in wall decoration projects, which directly affects the effect of topcoat and the long-term durability of the wall. To ensure that the construction meets the standards, the following core steps and technical points must be strictly followed:

1. Standard construction process

Base treatment (key foundation)

Thorough cleaning: Remove all pollutants such as dust and oil stains on the wall.

Fine grinding: Use sandpaper to grind, eliminate protrusions and burrs, and ensure that the base surface is flat.

Defect repair: Use special repair materials (such as gypsum-based putty) to fill cracks and holes.

Putty mixing

Precise ratio: Strictly control the water-powder ratio according to the product instructions.

Full stirring: Use an electric stirrer to mix to a uniform, particle-free paste consistency.

Apply interface agent (enhanced bonding)

Before scraping putty, evenly apply a special interface agent to improve the bonding strength between putty and the base surface.

Scraping putty

Tool requirements: Use clean steel or hard plastic scraper.

Operation specification: Apply force evenly and keep the scraper at a reasonable angle to ensure that the putty layer is full, flat, and free of impurities. Avoid obvious scratches or bubbles.

Drying and grinding

Fully drying: Wait for the putty layer to completely solidify (time depends on the environment).

Fine grinding: Use fine-mesh sandpaper (recommended ≥240 mesh) to grind until the surface is flat and smooth, eliminating knife marks and joints.

Inspection and repair: After grinding, check carefully and make targeted repairs to defects.

Multi-layer construction (depending on the needs)

Depending on the surface condition and flatness requirements, multiple layers may be required. Make sure that each layer is completely dry before proceeding to the next layer.

Completion cleaning

After the construction is completed, thoroughly remove the dust generated by grinding to ensure the wall is clean.

2. Core quality control elements

Base treatment is the premise: the cleanliness, flatness and firmness of the base surface directly affect the adhesion effect and final flatness of the putty.

Material mixing is the key: accurate proportion and sufficient mixing are the basis for obtaining uniform and stable putty paste and avoiding lumps or particles.

The scraping process is the core: standard operation, clean tools and uniform force are the core to ensure that the putty layer is dense, flat and defect-free.

Grinding time and quality: Fine grinding must be carried out after the putty is fully dried, which is a key step to obtain a smooth paint base.

Environmental condition control: The construction environment should be well ventilated and the temperature and humidity should be appropriate. Avoid working under extremely humid or high temperature conditions.

Selection of high-quality materials: Selecting high-quality putty powder with excellent bonding strength, crack resistance, easy construction, quick drying and fine texture is the basis for ensuring construction quality and long-term performance.

Conclusion

High-standard putty construction is the basic guarantee for obtaining high-quality wall decoration effects. Strictly following the standard construction process and controlling material quality, process details and environmental conditions are the key to ensuring that the putty layer is smooth, firm and defect-free, providing an ideal base surface for subsequent painting.