hydroxypropyl methyl cellulose hpmc for tile adhesive
Hydroxypropyl methyl cellulose
HPMC can be widely used in concrete, brick wall, block, gypsum wallboard, cement board and other substrate surface and ceramic tile, floor tile, wall brick, Mosaic, marble, culture stone and other direct paste materials.
It completely solves the problem that tiles, floor tiles and other materials can be selected without the use of high-quality special bonding materials in the pasting construction, and provides a new and reliable tile-specific paste product for the market.
1. High bonding strength, fast curing
2, construction is convenient, just use the right amount of water stirring can be used
3, excellent pressure resistance, tensile strength, water resistance, alkali resistance and weather resistance, and not affected by the environment.
4. Good workability, water retention, workability and drop resistance.
5. Ultra-thin layer construction can be achieved.Coating thickness is less than half of the traditional process, saving cost and reducing shrinkage.Does not cause the decoration glue surface crack to fall off because of the stress.
Non-toxic, tasteless, pollution-free, is a real green products.
Tile Adhesive Introduction:
In the building materials market, there are more and more types of tiles. The quality of tile adhesive the use of tile. It is mainly used to paste decorative materials such as tiles, tiles ，floor tiles. Ect…
Tile adhesive features:
It has high bonding strength, water resistance, freeze-thaw resistance, good aging resistance and convenient construction. It is an ideal bonding material.
Main ingreadient:
cement, quartz sand, heavy calcium, HPMC (hypromellose), rubber powder, wood fiber, starch ether, is a polymer-modified cement-based tile paste mortar.
According to material characteristics:
Porcelain brick (water absorption rate less than 0.5%);
Ceramic tile (water absorption rate 0.5% to 3%);
Fine brick (water absorption rate 3% to 6%);
Tantalum brick (water absorption rate 6% to 10%);
Clay brick (water absorption rate than more 10%),
Cause Analysis：
Ceramic tiles have few surface pores, smooth back surface, and extremely low water absorption. There are almost no micropores or pits to lock cement mortar.
The bonding material is subjected to swelling, shrinkage, thermal expansion and contraction, hardening shrinkage, construction shock and other external forces, so that there is a great interaction force between the base layer and the bonding layer.
Ordinary cement mortar or brick binder is difficult to penetrate and adhere, so the problem of hollowing and detachment often occurs.
In different ceramic tiles, higher hardness and lower water absorption seem to be the commonality of these new ceramic tiles.
Generally, the lower the water absorption rate of the tile, the better the degree of vitrification, the better the physical and chemical properties of the product, and the less likely to crack or peel off due to the thermal expansion and contraction of the climate change.
With excellent physical and chemical properties, good frost resistance and low pollution, vitrified tiles have gradually become the mainstream of the market.
The tile Adhesive HPMC, which provides good water retention and construction for the new mortar. Due to its air entrainment (1900g/L—-1400g/L PO 400 sand 600 HPMC 2), the weight of the tile adhesive is reduced, the material is saved and the elastic modulus of the hardened mortar is reduced.
Generally, the lower the water absorption rate of the tile, the better the degree of vitrification, the better the physical and chemical properties of the product, and the less likely to crack or peel off due to the thermal expansion and contraction of the climate change.
hydroxypropyl methyl cellulose hpmc for tile adhesive ---- Instructions:
First of all, clean the surface of the base, the base level and solid, no floating ash, no inclined oil.
According to the powder-water ratio of 4:1, add water to the binder, stir while adding water, stir to make a paste, let stand for 10 minutes, and then stir to use.
Tempered mud with jointed trowel scraping surface fixed on the base, so it is evenly distributed in a striped shape, so the bonding area increases, the air is easily removed, the coating thickness is 3mm, 6mm, and the material combined according to the coating, square and compacted, without notches in 10 minutes, can be freely adjusted.
After 24 hours, other construction can be carried out.It is suggested that CCB color mildew sealant be used in joint filler, and the effect is better.
Reference amount:
When the thickness is 6mm, the dosage is 4kg/m2
Preventive measures:
Ceramic tile adhesive should be stored in a dry and ventilated place, avoid damp.
When using ceramic tile adhesive, cannot adjust too much, inspect construction quantity and decide.If not used, it will agglomerate and cannot be used continuously.
Construction and storage temperature should be above 5℃.
Shelf life :12 months.
