Wallpaper pasting construction technology

Material preparation and requirements:

Wallpaper: According to the design requirements and the material samples determined by the owner, fully prepare and keep the wallpaper according to the storage requirements. Before the wallpaper enters the site, check that the wallpaper used meets the design requirements, and there is an environmental protection test report.

Adhesive: Generally, special wallpaper adhesive matched with wallpaper material is used or 8407 building adhesive is used when not specified. The adhesive material required to be used has a certificate of conformity and an adhesive force inspection report.

Building tools:

Movable paper cutter, steel trowel, plastic scraper, wool glue stick, stainless steel ruler, paper cutting operation platform, steel tape measure, syringe and needle powder bag, soft towel, scrubber, large and small plastic barrels, etc.

Relevant construction conditions:

Before the construction of wall and top wallpaper, the paint of doors and windows and the installation of electrical equipment are completed, and the lamps that affect the pasting should be removed, and then installed after the wallpaper is completed.

Wall plastering should be dried in advance. The wall at the grass-roots level is dry and flat, the angle of yin and yang is straight, the grass-roots level is solid and firm, and there is no looseness, powder drop, flying thorn, pockmarked sand and cracks, and the moisture content conforms to the relevant regulations.

The ground engineering requires that the construction be completed, and there shall be no cross operation such as big dust.

Construction technology:

Technical measures:

Basic treatment: the basic layer of wallpaper is an important factor to determine the bonding quality of wallpaper. For the wall foundation, putty should be used for leveling. Pay special attention to the angle of Yin and Yang of the wall, which should be straight and square, and there should be no corner drop. The wall should be smooth without protruding pits, so that the grassroots level is solid and firm, without looseness, peeling and powder falling. At the same time, the moisture content at the grass-roots level should not be greater than 8%, and the surface should be sanded.

Elastic line at the grass-roots level: according to the specifications of wallpaper, the control line pops up on the wall as the basis for wallpaper pasting, which can control the splicing and grafting parts of wallpaper, and the patterns, patterns and lines run through vertically and horizontally. Require each wall to play line, pop up the center line on the wall with windows, and pop up vertical lines at the window sill nearly 5cm to ensure the symmetry of the wall wallpaper between windows, and play line to the upper edge of the baseboard; The wall top shall be subject to the hanging mirror line, and a horizontal line will pop up when there is no hanging mirror line.

Paper-cutting: Before paper-cutting, it is necessary to plan and number the required wallpaper as a whole, so as to ensure the orderly pasting. Designate a person to be responsible for paper cutting, and set up a special shelf to place wallpaper when doing large-scale work, so as to achieve the purpose of convenient construction. According to the height of wallpaper paste, a margin of 10 mm ~ 30 mm should be reserved. If the wallpaper and wall covering are patterned, cut out the required number of wallpapers according to the length of the wall, and pay attention to the numbering and matching. Pay special attention to paper cutting, stick the cutting knife on the edge of the ruler, and press the wallpaper evenly with the ruler in one go. It is not allowed to pause or change the tool angle. Wallpaper edges should be neat, burr-free, and level.

Primer sealing: brush the wall base with clear oil before pasting wallpaper; Or sealed with a special primer, which can ensure that the wall base will not regain moisture or deform because the wallpaper absorbs moisture in the glue solution.

Glue brushing: the back and wall of wallpaper should be coated with adhesive, and the thickness of glue brushing should be uniform. The width of the wall paint should be 50mm wider than the wallpaper, and the inner corner of the wall paint 1 ~ 2 times. Generally, special adhesive is used; If the adhesive is prepared on site, it needs to be filtered with a 400-hole /cm3 sieve to remove bulges and impurities in the adhesive, and the prepared adhesive will be used up on the same day.

Adhesive-backed wallpaper: You can soak the cut wallpaper in the sink, and then roll it into a roll with the pattern outward from the bottom, so that you can stick it on the wall without brushing glue.

Paste paper: when pasting wallpaper, stand upright first, then sew the pattern, and then scrape it flat with a scraper. Principle: First vertical plane, then horizontal plane, then detailed plane. When sticking to the vertical plane, go up first and then down, and when sticking to the horizontal plane, go up first and then down.

Generally, it starts from the vertical line of the wall and ends at the inner corner. The order is to choose the backlight near the corner of the window sill and paste it in turn to avoid the shadow at the seam.

Wallpaper without patterns and patterns: it can be pasted by overlapping method, and two adjacent pieces can be overlapped by sewing for about 30 mm. Cut off the overlapping parts from top to bottom with a steel ruler and movable scissors, tear off small strips of wallpaper, evenly drive the glue from top to bottom with a scraper to discharge bubbles, and wipe off the excess glue with a wet cloth in time to ensure the surface of wallpaper is clean. Thick wallpaper must be rolled flat with a rubber roller. Note: It is forbidden to press foamed wallpaper and composite wallpaper with a scraper. You can use a towel, sponge or brush to avoid dead folds in embossing.

Wallpaper with patterns and patterns: In order to ensure the integrity and continuity of patterns, splicing is adopted when mounting, and the patterns are spliced first and then spliced. Paste and cut off the extra parts in the same way as above. Generally, after the adhesive reaches a certain level (about 0.5h), the redundant part will be cut off and the overlapping part will be compacted with a steel ruler.

When pasting wallpaper, the seams should overlap at the internal corner, and there should be no corner collapse at the external corner, so the corners should be compacted. Ensure that there are no seams at 1.5 meters. The wallpaper with color difference should be selected and adjusted in advance before construction.

Cleaning up: the glue and stains on the surface should be cleaned up in time, and all corners should be filled with glue and compacted with wooden sticks or rubber rollers. If there are bubbles, you can first use an injection needle to exhaust the air, then inject glue, and then compact it with a roller. If there are wrinkles on the surface, you can gently wipe the paper with a wet towel when the glue is not dry to make it wet. After stretching, gently scrape the wallpaper and roll it flat.

Quality standard:

Guaranteed items:

The varieties, specifications and patterns of wallpaper must conform to the regulations and requirements of design and material samples.

The adhesive material used for pasting must have sufficient adhesion and durability.

Basic items:

Papering surface: consistent color, no spots and stains, no glue marks.

Each mosaic: horizontal and vertical, the pattern is correct, the pattern and pattern at the mosaic are consistent, the distance from the wall is 1.5m, the overlap at the internal corner is smooth, and there is no joint at the external corner.

Joints between pasting and mirror lines, panels, skirting boards, electric trough boxes, etc. : The joints are tight and seamless, and there are no missing stickers and subsidies. The moving parts to be dismantled are not pasted.