Mislabeling different batches of wallpaper in the same wall, leading to color difference is known as to become a batch of color difference;
Tip: be sure to pay attention to the wallpaper lot amount when buying and building.
2
Structure of the use of quality not pass binders, or wallpaper on the back of the glue swab uneven, leading to wallpaper appear warped advantage, and mistakenly that is not in a position to paste;
Tip: match a good horse with an excellent saddle. Don’t allow the mere truth of experiencing a few dollars worthy of of glue influence your outfit. Brand products are recommended.
3
During the construction, the joints had been treated with scraping board, which resulted in damage of the lines upon both sides of the joints.
Tip: gentle building.
4
During the building, the wallpaper surface area is scratched hard with a scraper or a hard towel (with lots of thread ends), that leads to the inking ink or gold, silver, pearl powder and so on falling off.
Hint: when structure, strength should be appropriate.
5
During the construction, because of unwashed hands, dirty towels, and soiled wall structure materials Stone paper Wallpaper leaking from the joint, the medial side look at at the joint became black, that was mistaken for the side view shadow.
Tip: keep your construction equipment clean.
6
During the construction, because of the excessive overflow of glue from the joint, a big amount of clean drinking water was not soaked with a sponge later on, and the joint became yellow several days down the road the wall upon the wallpaper, which was recognised incorrectly as quality problem.
Tip: clean the glue in the joint after structure.
7
Hard scraper is used in the building of gold foil paper, leading to surface damage or scratch of gold foil, which is recognised incorrectly as quality problem.
Tip: construction tools should be selected for different materials and various parts.
8
During the structure of the precious metal foil paper, the white paste is mistakenly infected with the surface of the gold foil, causing the gold film to reduce its luster (the white paste will form a mist film upon the top of precious metal film and can’t be wiped), which is mistaken for quality problems.
Suggestion: gold foil is beautiful, but she’s also scared of glue.
9
After the metope brushed varnish, did not wait for varnish to dry fully after that paste wallpaper, cause varnish by bottom paper infiltration surface paste, generate chemical response, form like the protruding granule of measles shape, mistake is an excellent problem;
Clew: metope does not dry construction but big avoid
10
After wallpaper is pasted, open up a window immediately ventilated, bring about wallpaper dry shrink as well fast, form juncture is apparent, mistake is quality problem;
Tip: end up being gradual , nor be impatient.
11
Because wall seeps water, provide about wallpaper to paste over time of time, start by foundation paper mildew, the secretion of mould and paste produce chemical reaction, provide about wallpaper surface large area discoloration, appear red spot or blue place, and mistake is quality problem.
Because of the need for warm and humid environment for mold development, this kind of circumstance often occurs in rainy and high-temperature periods, which generally occurs initial in the inner portion of the wall with discharge pipes or close to 
eaves and Windows.
Tip: it is very important to protect the wall from wetness, especially the wallpaper base paper made of pure paper and non-woven cloth should be waterproof.