The Role and Precautions of Redispersible Latex Powder

Redispersed latex powder is a powder dispersion obtained by spray-drying modified polymer emulsion. It has good dispersibility and can be re-emulsified into a stable polymer emulsion after adding water. Its chemical properties are exactly the same as the initial emulsion. Therefore, In order to make it possible to produce high-quality dry-mixed mortar, so as to improve the performance of the mortar, today we will talk about the function and use of re-dispersed latex powder.

What Are the Functions of Redispersible Latex Powder?

Redispersed polymer powder is an indispensable functional additive for mixed mortar, which can improve the performance of mortar and mortar to increase strength, improve the bonding strength of mortar and various substrates, and improve mortar performance and compressive strength. Flexibility and deformability, bending strength, wear resistance, toughness, adhesiveness and water holding capacity, processability. In addition, polymer powders with hydrophobic properties can make good waterproof mortars.

The redispersibility of the mortar in the masonry mortar and plastering process makes the latex powder have a good impermeability, water retention, frost resistance, and high bonding strength, which can effectively solve the problem of traditional Chinese masonry mortar using masonry. Existing cracking, penetration and other quality management problems.

Self-leveling mortar, floor material re-dispersed latex powder, high strength, good cohesion/adhesion, requires flexibility. It can improve the adhesion, abrasion resistance and water retention of the material. It can bring excellent rheology, workability and best self-slip performance to ground self-leveling mortar and leveling mortar.

Tile adhesives, tile grouts are redispersible latex powders with good adhesion, good water retention, long open time, flexibility, sag resistance, and good freeze-thaw cycle resistance. It can be a thin layer of tile adhesive, tile adhesive and rice grains to bring high adhesion, high resistance to sliding and good construction workability.

Waterproof concrete mortar redispersible latex powder enhances the strength of the bonding material to all different substrates, reduces the dynamic modulus of elasticity of the enterprise, increases water retention, and reduces water penetration. It is highly flexible, high weather resistance and high waterproof technical requirements. Products that provide a water-repellent and water-resistant functional seal for system construction with long-lasting effects.

The external wall thermal insulation mortar can redisperse the latex powder in the external wall thermal insulation system, enhance the cohesion of the mortar and the binding force to the thermal insulation board, and reduce energy consumption while seeking thermal insulation for you.. The external wall thermal insulation mortar product achieves the necessary work on the external wall , flexural strength and flexibility, can make your mortar products have good bonding performance with a series of insulation materials and base layers, and at the same time, it also helps to improve high impact resistance and surface crack resistance.

Redispersible latex powder for repair mortars with compliant elasticity, shrinkage, high adhesion, suitable bending and tensile strength requirements. Meet the above requirements for repair mortars to repair structural and non-structural concrete.

The redispersible latex powder for mortar on the interface can be mainly used for data processing and the surface of concrete, aerated concrete, lime-sand brick and fly ash brick, etc., to solve the problem of interface design caused by the excessive water absorption or smoothness of the surface of these materials. It is not easy to bond, the plaster layer is hollow, cracked, peeled off and other problems. Make the bonding strength stronger, not easy to fall off and water-resistant, and the freeze-thaw resistance is more excellent, which has a significant effect on simple operation methods and convenient construction management.

Application of Redispersible Latex Powder

Tile adhesive, bonding mortar for external thermal insulation system of external wall, plastering mortar for external thermal insulation system of external wall, tile pointing agent, self-flowing cement mortar, flexible putty for external wall, flexible anti-cracking mortar, rubber powder polystyrene particle thermal insulation mortar dry powder coating.

Precautions for the Use of Redispersible Latex Powder:

It is not advisable to feed the redispersible latex powder at one time, but to divide the amount in order to find a suitable amount.

When polypropylene fiber needs to be added, it must be dispersed in cement first, because the fine particles of cement can eliminate the static electricity of the fiber, so that the polypropylene fiber can be dispersed.

Stir and mix evenly, but the stirring time should not be too long, preferably 15 minutes, as the sand and cement are prone to sedimentation and stratification when stirring for a long time.

It is necessary to adjust the amount of additives and add HPMC in an appropriate amount according to seasonal changes

Avoid agglomeration of additives or cement due to moisture.

It is strictly forbidden to mix and stack and use with acidic substances.

It is forbidden to use it in construction below 5°C. Low temperature construction will cause the biggest project quality problem, causing the plastering mortar and the insulation board to not bond. This is a project quality problem that has no remedial plan in the later stage.