Views: 0 Author: Site Editor Publish Time: 2025-11-12 Origin: Site
RDP/VAE chemical powder is one of our best-selling products, offering low price and high quality. It can be used as an additive in tile adhesives for construction. Shijiazhuang Cellulose Co., Ltd., a cellulose manufacturer from China, can provide you with ample supply.
The advent of tile adhesives has, to a certain extent, ensured the reliability of tile adhesion. Different construction habits and methods place different performance requirements on tile adhesives. Currently, in China, the thick-set method (traditional adhesive-backed bonding) remains the mainstream method for tile installation. When using this method, the requirements for the tile adhesive are: easy to mix; easy to apply and non-sticky to the trowel; good adhesion; and good anti-slip properties. With the development of tile adhesive technology and improvements in construction techniques, the trowel method (thin-set method) has also gradually been adopted. For this method, the requirements for the tile adhesive are: easy to mix; good spreadability and non-sticky to the trowel; good anti-slip properties; good wetting properties for the tiles; and a longer open time.
Redispersible latex powder for tile adhesives is a green, environmentally friendly, energy-saving, high-quality, multi-purpose powder building material. It is an essential functional additive for dry-mix mortar. It can improve mortar performance, increase mortar strength, enhance adhesion to various substrates, and improve mortar flexibility, compressive strength, flexural strength, abrasion resistance, toughness, adhesion, water retention, and workability. Redispersible latex powder for tile adhesives boasts powerful performance, exhibiting high bonding ability and unique properties.
It contributes to later-stage strength, effectively improving the structural integrity and acid/alkali resistance of the project. The effects of redispersible latex powder on freshly mixed mortar: Extends workability and adjustability; improves water retention to ensure cement hydration; enhances sag resistance (special modified powder); improves workability (easy to apply to substrates, easy to press tiles into the adhesive); and has excellent adhesion to various substrates, including concrete, plaster, wood, old tiles, and PVC. It also exhibits good deformation capacity under various climatic conditions.
① Effects of addingredispersible latex powder to freshly mixed mortar for tile adhesive:
A. Extends workability and adjustability;
B. Improves water retention to ensure cement hydration;
C. Improves sag resistance (special modified powder);
D. Improves workability (easy to apply to substrates, easy to press tiles into the adhesive).
② The effect of adding redispersible latex powder on the hardening mortar of tile adhesive:
A. Excellent adhesion to various substrates, including concrete, plaster, wood, old tiles, and PVC;
B. Excellent strain resistance under various climatic conditions.
The adhesive powder changes the consistency and smoothness of the system in a wet-mixed state. Adding latex powder improves cohesion, provides adhesion to a smooth and dense surface layer after drying, improves the interfacial interaction between sand and pores, and, with sufficient addition, forms a film at the interface, giving the tile adhesive flexibility, reducing the elastic modulus, and largely absorbing thermal deformation stress. It also provides water resistance in the later stages, buffering temperature and material deformation inconsistencies. The flexibility and rigidity of the adhesive powder can generally be determined based on its glass transition temperature; those below 0 degrees Celsius are more flexible. The specific adhesive powder needed in the mortar generally depends on the product's performance characteristics. Tile adhesives require adhesive powders with good adhesion.
The polymer film in polymer-modified mortar plays a very important role in the hardening of the mortar. The redispersible latex powder distributed at the interface plays another crucial role after dispersion and film formation: increasing the adhesion to the contacting materials. In the microstructure of the interface between powdered polymer-modified ceramic tile adhesive mortar and the ceramic tile, the polymer-formed film bridges the gap between the vitrified ceramic tile with extremely low water absorption and the cement mortar matrix. The contact area between two different materials is a particularly high-risk region for shrinkage crack formation, leading to loss of adhesive strength. Therefore, the ability of the latex film to heal shrinkage cracks plays a vital role in ceramic tile adhesives.
