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Client Story: Redispersible Polymer Powder (RDP) Empowers High-Quality Dry-Mix Mortars in India

2025-08-07 17:54

In India, a climate of high temperatures and humidity poses a severe challenge to building materials. When our Indian partner approached us, they were facing a dilemma: how to produce dry-mix mortar products that ensured both construction efficiency and outstanding durability in such a volatile environment?

This client, a pioneer in India's dry-mix mortar industry, was dedicated to providing the market with high-quality tile adhesives, renders, and putties. However, conventional materials on the market often failed to meet high standards in several key areas:

  • Tile Adhesive "Open Time": In the high heat of India, adhesives' moisture evaporated quickly, leading to a short "open time" for workers to lay tiles. This resulted in low construction efficiency and quality issues like hollowing and detachment.

  • Render "Crack Resistance": Due to temperature fluctuations and slight substrate movements, renders often developed shrinkage cracks, which not only affected aesthetics but also increased rework costs.

  • Putty "Moisture-Proofing Capability": Faced with the humid monsoon season, traditional putties were susceptible to moisture damage and peeling, failing to provide lasting protection for walls.

They urgently needed a solution that could comprehensively upgrade their product performance.


Our Solution: Deeply Customized Redispersible Polymer Powder (RDP)


As a Chinese chemical materials manufacturer, we positioned ourselves not just as a product supplier, but as a technical partner. Our team gained a deep understanding of the unique climate and construction practices of the Indian market and tailored a high-quality Redispersible Polymer Powder (RDP) for them.

Our RDP is a white powder made from a polymer emulsion using advanced spray-drying technology. When added to the client's dry-mix mortar formulations, it serves several crucial functions:

  • Improved Bond Strength and Working Time: Our RDP forms a high-strength polymer film after the mortar cures, significantly enhancing the bond strength between tile adhesives and various substrates. It also effectively retains water, extending the open time and ensuring workers have ample time to complete the laying process, reducing the risk of hollowing.

  • Enhanced Flexibility and Crack Resistance: The polymer film from our RDP imparts excellent flexibility to renders and putties. It absorbs the small stresses caused by thermal expansion and contraction, fundamentally reducing the risk of mortar cracking.

  • Boosted Water Resistance and Durability: The hydrophobic polymers in RDP effectively lower the water absorption rate of the mortar, creating a robust moisture barrier for putties and tile adhesives and improving their durability in humid environments.


Project Outcome: Our Partner Excels in the Indian Market


By using our customized RDP, this Indian client's product performance achieved a quantum leap.

  • Their tile adhesive performed exceptionally well in high-temperature conditions, with significantly extended open time, earning praise from contractors.

  • The crack resistance of their renders was greatly improved, reducing rework rates.

  • The performance of their putties in humid environments exceeded expectations, helping the client secure more high-standard projects.

This case study proves that high-quality Redispersible Polymer Powder (RDP) is the key to upgrading the performance of dry-mix mortars in India and worldwide. As a professional Chinese RDP manufacturer, we will continue to support your project's success with innovative products and technical assistance.

Redispersible Polymer Powder (RDP)


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