1. Putty powder itself is a semi-finished product, and the instability of raw materials is one of the main reasons for color difference. Due to the different quality of mineral powder extracted from mining areas, if not properly mixed, color difference may occur in different batches.
2. Due to some manufacturers using the method of "filling numbers with inferior materials" to mix and ship low-grade materials, the large quantity purchased cannot be inspected one by one, resulting in individual "missed fish" mixed in production and causing individual color differences.
3. Color difference caused by production personnel mistakenly mixing different grades of raw materials together or scraping different brands of products on the same wall.
1. Color difference is generally not a formula issue, so there is no quality problem. For walls that need to be painted, they can generally be covered with paint film without affecting the overall decorative effect. If color difference occurs when scraping two or three layers of unpainted walls, it is recommended to scrape another layer of colorless putty or paint.
1. Construction reason: Due to the painter's repeated use of a scraper to dry scrape the wall surface during the final finishing process, there is a slight peeling phenomenon on the surface, which will cause powdering symptoms after drying.
2. Human factors: Due to the last layer of construction putty not drying yet, external dust adhered to the wall surface (cutting operations, strong winds, cleaning floors, etc.), causing the wall surface to appear powdery.
3. Production reasons: Powder shedding caused by unstable formula due to careless placement of raw material formula ratios by production personnel or leakage of machine equipment.
1. The construction master should pay attention to the surface humidity of the putty when doing the last unpainted finishing construction. If it is too dry, it will cause peeling and powdering. When finishing, the knife mark can be smoothed out, and it is not advisable to dry scrape it multiple times.
If dust adheres to the wall and causes false detachment, it should be removed with a chicken feather ball after decoration is completed, or wiped clean with water and a clean cloth strip.
3. If there is fast drying and powdering, the company's technical personnel should wait on site to identify whether it is caused by the product formula.
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