The importance of sanding down walls+ 查看更多
Sanding down walls is a crucial step in wall decoration, as it significantly contributes to improving wall surface evenness, finesse, and the overall final effect. Whether during the day or night, it is essential to have a handheld light bulb with a minimum wattage of 200 to observe the wall surface's evenness while sanding. Additionally, selecting the appropriate sandpaper for wall sanding is not a matter of coarseness or fineness alone. It is generally recommended to start with fine-grit sandpaper and switch to a coarser grit if necessary. However, a final round of sanding with finer-grit sandpaper is typically required to ensure a detailed and scratch-free wall surface. To enhance the longevity of the homeowner's walls, skilled craftsmen often recommend using water-resistant putty, even if it may present slightly more challenges during the sanding process. Furthermore, it is advisable to sand the water-resistant putty within three days after wall application when its strength is relatively low, and the surface structure is not yet fully solidified, making the sanding process more efficient. To achieve superior results, a two-step sanding approach can be employed, beginning with coarse-grit sandpaper, such as 120 grit, followed by sanding with finer-grit sandpaper above 360 grit. The adhesive strength of the putty directly determines its future lifespan and water resistance. Given favorable conditions, opting for water-resistant putty with higher adhesive strength provides superior long-term value and durability.
The Importance of Sanding down Walls:
Sanding down walls plays a crucial role in wall decoration, ensuring enhanced surface evenness, finesse, and overall visual appeal. To facilitate an accurate assessment of the wall surface evenness during sanding, it is essential to have a handheld light bulb with a minimum wattage of 200, regardless of the time of day.
Proper Selection of Sandpaper:
Choosing the right sandpaper for wall sanding is not a matter of coarseness or fineness alone. It is recommended to commence the sanding process using fine-grit sandpaper, progressively switching to coarser grit if necessary. However, it is crucial to conclude the process by re-sanding with finer-grit sandpaper to achieve a detailed and scratch-free wall surface.
Utilizing Water-Resistant Putty:
To extend the lifespan of the homeowner's walls, professional craftsmen often recommend using water-resistant putty, even if it may present slight challenges during the sanding process. This choice ensures long-term cost-effectiveness and improved durability.

Timing for Sanding:
For optimal results, it is preferable to sand the water-resistant putty within three days after the wall application. During this period, the putty has lower strength, and the surface structure is not yet fully solidified, making the sanding process more efficient.
Two-Step Sanding Approach:
To achieve superior outcomes, employing a two-step sanding technique is recommended. Initiate sanding with coarse-grit sandpaper, such as 120 grit, followed by sanding with finer-grit sandpaper above 360 grit.
The Adhesive Strength of Putty:
The adhesive strength of the putty directly influences its future lifespan and water resistance. When circumstances allow, choosing water-resistant putty with higher adhesive strength offers superior long-term value and durability.
Sanding down walls is a vital aspect of wall decoration, ensuring improved surface evenness, finesse, and overall visual appeal. To achieve desirable results, having proper lighting using a handheld light bulb is essential for accurate observation of the wall surface during sanding. Optimal sandpaper selection involves a balance between coarseness and fineness, concluding with re-sanding using finer-grit sandpaper for a detailed and scratch-free wall surface. Skilled craftsmen prioritize the use of water-resistant putty, even if it presents some challenges during the sanding process, as it significantly enhances the longevity and durability of the walls.
When sanding water-resistant putty, it is advisable to undertake the task within three days after the application. During this time frame, the putty possesses lower strength, and the surface structure is not fully solidified, making the sanding process more efficient and less labor-intensive.
To achieve optimal results, a two-step sanding approach is recommended. Begin by using a coarse-grit sandpaper, such as 120 grit, to remove any major imperfections or unevenness. This initial sanding pass prepares the surface for further refinement. Subsequently, switch to finer-grit sandpaper, preferably above 360 grit, to achieve a smooth and flawless finish.
The adhesive strength of the putty plays a vital role in determining the future lifespan and water resistance of the walls. Given favorable conditions, it is advisable to choose water-resistant putty with higher adhesive strength. This selection ensures superior long-term value, as it minimizes the risk of cracking, peeling, or water damage over time.
In conclusion, Sanding down walls is a critical step in wall decoration that significantly enhances surface evenness, finesse, and the overall visual impact of the walls. Adequate lighting with a handheld light bulb is essential for accurate observation of the wall surface during sanding. Proper selection of sandpaper, utilizing water-resistant putty, timing the sanding process appropriately, and considering the adhesive strength of the putty are all key factors in achieving a flawless and durable wall finish. By following these guidelines, homeowners can enjoy beautifully finished walls with enhanced longevity and resistance to wear and water damage.