1. Full Glue Coating as Primer
The irregular road-side gangs and small companies may directly apply putty on the wall after repairing the base layer for convenience or cost-saving. Actually, there is an indispensable step of rolling glue in between. After repairing the base layer, you should roll a layer of glue on the wall first, then apply putty after the glue is completely dry to ensure the tight adhesion between the new coating and the existing base layer, avoiding problems such as shell lifting and cracking on the painted wall again. Ordinary 801 construction glue can be used.
2. Key Repair of Cracks
Wall cracks are divided into several types according to different causes. For slight cracks, they can be filled with putty powder mixed with glue directly, but for more serious wall cracks, they need to be treated differently. Due to the reasons like the original wall subsidence and improper base treatment, some walls may have more serious cracks. When renovating, it is necessary to scrape off the coating and repair with crack-sealing corner paper tape, then roll glue, apply putty, primer and topcoat.
3. Waterproof and Anti-mold Treatment
The walls around doors and windows are prone to mold because they are often exposed to rain. In addition, corners such as wall angles, behind sofas and air conditioners may also become moldy and discolored over time. During renovation, not only should old problems be solved, but preventive measures must also be taken to avoid new problems.
For moldy and discolored walls, it is essential to scrape off the coating during renovation, carry out waterproof and anti-mold treatment first, and then follow the normal steps to complete the construction process. Besides doing a separate waterproof layer, the paint and coatings used in each construction phase should preferably have waterproof functions, especially the primer.
TERUI Taieri Wallpaper Official Website: http://www.teruiwall.com