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Questions about the safety of Adhesive and joint mixture used for installing mosaics
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In fact, there is no unconditional absolutely safe paste material for mosaic paste. What kind of mosaic material should be used? It is relatively safe to paste on what base level and what Adhesive and joint mixture are used. It is relatively safe to adhesive and fill in the joint what material is used in what environment.
Usually, the base layer of the mosaic is mostly the base layer of the cement concrete base layer or the cement mortar leveling layer. It is most suitable and safe to use the inorganic cement-based adhesive and caulking agent to paste the mosaic and caulking on such base layer. but the paste of the mosaic material should be glass, ceramics, stone, shell and other silicate materials, can not be metal, resin, wood, PVC and other plastic non-silicate mosaics.
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What kind of adhesives and joint mixture should be used for different kinds of mosaics?
1. Installing mosaics on wood boards, gypsum boards and other easy expansion and deformation layers after moisture-absorbing, as well as paste mosaics on old decorative surface bases (non-metallic), dispersion adhesive are recommended (D)
2.Installing mosaics on metal layer, using reactive resin adhesives and polyurethane adhesives (R)
3. Standard swimming pools with deeper water pressure. Joint mixture are recommended to be filled with a two-component epoxy caulking agent (adjustable color).
4. Swimming pools, especially swimming pools for children, are suggested to use mildew-repellent cement-based sealant (especially anti-mildew joint mixture) or two-component epoxy sealant.
5.Colorful mosaic puzzles, especially hand-cut puzzles, are suggested to use translucent epoxy caulking agent to reduce the effect of gapping agent on the screen effect.
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Joint mixture regular construction
First of all, the mosaic surface or the stone surface and the joint seams must be cleaned to wet the surface with a damp cloth, but do not allow water to be trapped to reduce the infiltration of pigments and cement in the small holes in the mosaic, and ensure the color and final condensation.
To help control the color and reduce chalking, wipe the surface with a cotton cloth or a clean dry towel within 1-2 hours.
During the first 72 hours, care must be taken to prevent the joint mixture from drying out (especially when exposed to the sun's surface). At this time, the surface can be covered with natural kraft paper (preferably not to be replaced by plastic sheets or newspapers) to prevent other constructions. The work soiled the new joints. Outdoor caulking can be performed 2-3 spray moisturizing.
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Precautions
1. The proportion of powder and water in the joint mixture is slightly different depending on the width of the seam and the degree of dryness of the environment. The narrower gap can be relatively thin. The width of the seam should be 1.5 to 5 mm (when using the coarse sand sealant, Brick seam width is 2-13mm).
2. Can't use acidic cleaners to clean the finished tiles joint.
3. Construction or installation should within 5 ~ 40 °C environment and can not in rain conditions .
4. Special adhesives such as neutral glue should be used at the joints.
5. Do not use excessive thick joints on the brick surface during construction to avoid cleaning after bonding.
6. Avoid pressing, scratching and raining on the joint finished tiles and joint mixture within 24 hours.
7. After the construction of black joint mixture, clean the base surface with a dry cloth as soon as possible (within 10 minutes). After 24 hours of drying, the remaining spots can be cleaned with clean water to prevent whitening of the sealant.
8. When large-area construction is in progress, expansion joints should be left. After 5 to 6 hours of construction, maintenance should be carried out once. After 24 hours, the second time of conservation should be maintained.
9, the product has a certain degree of corrosion, should avoid contact with the eye, such as accidentally diverted, immediately rinse with plenty of water, severe cases should be immediately sent to hospital for medical treatment.
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