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Redispersible Polymer?Powder

CAS?: 24937-78-8

Redispersible Polymer?Powder?(RDP)??is spray dried redispersible polymer?powder,also named as?Redispersible emulsion Powder or latex powder,?designed for the construction industry to enhance the properties of dry mortar blends,?able to Redispersible in water and? react with hydrate product of cement?/?gypsum and stuffing,?form composite membrane with good mechanics intensity.

It improves the important application properties of dry mortars,?longer opening time,?better adhesion with difficult substrates,?lower water consumption,?better abrasion and impact resistance.
1.Technical Specification

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2. Key Properties of Redispersible Polymer Powder

RDP offers a wide range of properties that make it invaluable for use in construction materials. These properties help improve the workability, adhesion, and long-term durability of cement-based products.

2.1 Adhesion Improvement

One of the most important benefits of RDP is its ability to improve the adhesion of cement-based products. By adding RDP to mortar, plaster, and adhesive mixtures, the final product gains superior bonding strength. This is particularly useful in applications such as tile adhesives, where strong adhesion to both substrates (like concrete or ceramic) and the tiles themselves is required.

The polymer molecules form strong bonds with the surface of the materials, improving the overall grip and reducing the risk of delamination or failure over time.

2.2 Flexibility and Crack Resistance

RDP significantly enhances the flexibility of cement-based products, which is particularly important in applications where the substrate may experience movement, such as in walls, floors, or exterior coatings. By increasing flexibility, RDP helps reduce the likelihood of cracking in mortar, plaster, or other applied layers. This is crucial for materials exposed to temperature changes, humidity, or physical stress, which could otherwise lead to structural damage or deterioration.

2.3 Improved Water Retention

Water retention is another vital feature provided by Redispersible Polymer Powder. In cementitious applications, it’s crucial that the mortar or plaster maintains enough moisture during application and curing. RDP helps ensure that the mixture retains moisture for a longer period, allowing for more complete hydration of the cement particles. This results in stronger, more durable products that are less likely to crack or shrink during drying.

2.4 Enhanced Workability

RDP also improves the workability of construction materials, making them easier to apply and shape. For instance, plaster mixtures containing RDP are smoother and easier to spread, and they remain workable for longer periods. This provides greater control during application, reducing the effort needed for installation while improving the quality of the finish.

2.5 Water Resistance

Another significant property of RDP is its ability to improve the water resistance of construction materials. When used in products like tile adhesives, external plasters, or water-resistant mortars, RDP helps reduce the impact of water on the integrity of the materials. The polymer particles form a protective barrier that prevents the absorption of moisture, which is essential in areas like bathrooms, kitchens, or external walls exposed to rain.

3. Applications of Redispersible Polymer Powder (RDP)

The versatility of Redispersible Polymer Powder allows it to be used in a wide range of applications in the construction and building industries. Below are some of the most common uses:

3.1 Tile Adhesives

Tile adhesives are perhaps one of the most significant applications of RDP. Redispersible Polymer Powder is used to improve the bonding strength, flexibility, and workability of tile adhesives. It enhances the adhesive’s ability to bond tiles securely to substrates like concrete, cement board, or drywall. The flexibility provided by RDP is particularly important for ensuring long-term adhesion, especially in areas with high foot traffic or potential substrate movement.

3.2 Dry Mix Mortars

In the production of dry mix mortars (e.g., for plastering, rendering, or masonry), RDP is used to enhance the overall properties of the mix. It improves the workability, bond strength, and flexibility of the mortar, making it more durable and easier to apply. RDP is often used in ready-mix formulations, where consistency and high-quality results are essential for large-scale construction projects.

3.3 Exterior Plasters and Renders

Exterior plasters and renders are exposed to the elements and must withstand harsh environmental conditions. RDP is commonly used in these products to improve flexibility, adhesion, and water resistance. By adding RDP, the render or plaster becomes more resistant to cracking due to thermal expansion or moisture fluctuations, ensuring long-lasting performance.

3.4 Self-Leveling Compounds

Self-leveling compounds, often used for flooring applications, are designed to create a smooth, even surface on which to lay tiles, carpets, or other flooring materials. RDP improves the flow, leveling, and curing properties of these compounds, resulting in a more stable and uniform finished floor.

3.5 Waterproof Coatings

Redispersible Polymer Powder is often used in waterproofing formulations. By adding RDP to waterproof coatings, the performance of the final product is enhanced. It increases the bond between the coating and the substrate, improves the film’s flexibility, and helps the product resist the penetration of water. These coatings are typically applied to roofs, basements, and other structures exposed to moisture.

3.6 Concrete Repairs

RDP is also useful in concrete repair applications. It helps increase the adhesion between repair mortars and the substrate, improving the durability and longevity of the repair. Additionally, RDP helps reduce the shrinkage and cracking that can occur in repair mortars as they cure.

4. Benefits of Redispersible Polymer Powder

The incorporation of RDP in various construction materials offers numerous advantages:

1. Increased Durability: By enhancing the bonding strength and flexibility, RDP helps ensure that construction materials last longer, even under harsh conditions.
2. Cost-Effectiveness: RDP improves the performance of construction materials, reducing the need for other additives or expensive modifications.
3. Improved Application Performance: Materials mixed with RDP are easier to apply, more flexible, and provide a smoother finish.
4. Enhanced Environmental Resistance: RDP provides increased water resistance, UV stability, and crack resistance, making it ideal for exterior applications.

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Redispersible Polymer Powder (RDP) is an essential additive in modern construction, offering a wide range of benefits that enhance the performance of cement-based materials. Whether it’s improving adhesion, increasing flexibility, or enhancing water retention, RDP plays a critical role in improving the durability and workability of construction products. Its widespread use in tile adhesives, dry-mix mortars, plasters, renders, and more is a testament to its versatility and value in the construction industry.

As construction materials continue to evolve, the use of additives like RDP will become even more important, helping to meet the demands for higher performance, longer-lasting, and more sustainable building materials.

4.?Packaging:

RDP?is packed in three layer paper bag with inner polyethylene bag reinforced ,?net weight is 25kg per bag.

5.Storage:

Keep it in cool dry warehouse,away from moisture,?sun,fire,rain.

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Cangzhou Bohai New District Anxin Chemistry Co., Ltd. is a leading cellulose ether manufacturer, specializing in AnxinCel? HPMC, MHEC, HEC,CMC,RDP.

1. HPMC Hydroxypropyl Methylcellulose

2. MHEC Hydroxyethyl Methyl Cellulose

3.??Hydroxyethyl Cellulose (HEC)

4. Sodium?Carboxymethyl Cellulose (CMC)

5. Ethyl Cellulose (EC)

6. Methyl Cellulose (MC)

7.?Redispersible Polymer Powder (RDP)

AnxinCel? cellulose ethers are used in a wide range of industries including construction, pharmaceuticals, and food processing.