| Stable
| high-volume
| premium-quality
RDP manufacturing
With financial support from Meikai Chemical, mikaVAE has built its own redispersible polymer powder (RDP) production facility, ensuring stable, high-volume RDP manufacturing with guaranteed quality.
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Redispersible Polymer Powder (RDP) Manufacturing and
R&D Center
MikaVAE Redispersible Polymer Powder (RDP) is a high-performance additive that enhances the durability, flexibility, and workability of construction materials like cement, gypsum, and adhesives. As a binder, flexibilizer, water-retention agent, and processing aid, it improves adhesion, crack resistance, and consistency, making it ideal for applications such as dry mixes, mortars, and adhesives.
mikaVAE RDP
Raw materials
Select high-quality VAE emulsion and PVA (polyvinyl alcohol) film-forming agent, prepare the mixture, filter, and store it in the emulsion tank
Spray drying
Filter the mixture and transfer it to the drying tower. Heat ambient air to 120-130°C to dry into a fine powder, then cool to 80-90°C in the upper section of the tower
Two-stage separation and drying
Large and small fabric bag dust collectors undergo two rounds of dehumidification and separation for efficient dust removal
Containerized freight shipping
Forklift operators load pallets into containers for export shipping
Palletizing
The conveyor and robotic arm stack RDP bags onto pallets, then wrap them in plastic for sealing
packaging
The automatic packaging line machine bags and seals the powder for efficient packaging
Sieving
The vibrating sieve screens the powder, preventing clumping and preparing it for packaging
Step 1 Raw materials
To ensure the production of high-quality RDP powder, MikaVAE sources raw materials from reputable emulsion manufacturers in China, trusted by leading brands such as DOW, Wacker, BASF, and other industry leaders.
Polymer Emulsion Preparation
VAE emulsion, used as a raw material, is enhanced with film-forming agents and other additives to improve polymer properties. The resulting mixture is then prepared for further processing and stored in the emulsion tank for efficient production use
VAE Emulsion
Vinyl Acetate-Ethylene Copolymer Emulsion
MikaVAE sources the highest quality VAE emulsion for RDP production, offering superior flexibility, water resistance, acid and alkali resistance, film-forming properties, and aging resistance
| ITEM | PARAMETER |
| Appearance | White, uniform emulsion |
pH Range | 4.0-6.0 |
Non-Volatile Content | ≥ 54.5% |
Viscosity | 500-1500 mPa·s (at 25°C) |
Residual Vinyl Acetate | ≤ 0.5% |
Dilution Stability | ≤ 0.5% |
Particle Size | ≤ 2 microns |
Minimum Film-Forming Temperature | 0°C |
Ethylene Content | ≤16±2% |
Film-forming agent
PVA , Polyvinyl Alcohol
The addition of a film-forming agent helps protect the colloid and prevent caking. Polyvinyl alcohol (PVA), a water-soluble, eco-friendly polymer, provides excellent film-forming and emulsifying properties and is used as a protective colloid in polymer emulsification and suspension polymerization
— Polymerization Degree: 400-600
— Molecular Weight: 17,600-26,400
| Film-forming Agent Brand A | PARAMETER |
| Viscosity (10%) | 5-6 |
Alcoholysis Degree | 86-89 |
Volatile Content | <5 |
Ash Content | ≤0.5 |
pH Value | 5-7 |
| Film-forming Agent Brand A | PARAMETER |
| Viscosity (10%) | 4-6 |
Alcoholysis Degree | 86-90 |
Volatile Content | <7 |
Ash Content | ≤1 |
pH Value | 5-7 |
Step 2 Spray drying
High-Speed Rotating Spray Atomizer
1. The high-speed centrifugal atomizer in the drying tower evenly atomizes the emulsion, and auxiliary materials are added based on the RDP formulation.
2. Filtered ambient air is heated to 120-130°C in the burner, then evenly introduced into the top of the drying tower through ducts. Upon contact with the atomized material, the moisture evaporates, transforming it into powder, and the temperature drops to approximately 80-90°C.
Step 3 Two-stage separation and drying
First Stage Separation
Large Fabric Bag Dust Collector
The dried fine powder, along with exhaust gas, is discharged from the lower part of the drying tower and collected by the large fabric bag. It then undergoes initial separation in the large bag dust collector. The dust collector’s lower section is equipped with a dehumidifier to perform RDP powder dehumidification.
First Stage Separation
Large Fabric Bag Dust Collector
After the dehumidifier removes moisture, the RDP dry powder and exhaust gases are directed through the recirculation fan into a small bag filter for secondary dust separation.
Step 4 Sieving
Buffer hopper and vibrating screen
After two-stage separation, the RDP powder is discharged through exhaust gases via the recirculation fan. The powder then flows into the mixer and is sifted by a vibrating screen to prevent clumping and ensure smooth processing.
Step 5-7 Sieving
Step 5
25kg automatic filling for RDP powder
Automatic 25kg filling of redispersible latex powder, sealing, and dropping onto the conveyor belt
Step 6
Standardized Palletizing
The claw machine efficiently stacks RDP bags, while the shrink wrap machine securely wraps the pallet with plastic film
Step 7
Container Transport and Shipping
The cargo box stacking method is pre-determined, and we can adapt to special loading requirements if needed
Optimized Production | Global Shipping
Our clients span over 20 countries globally, with efficient production and transportation being key factors driving our brand recognition
mikaVAE Service
- Packaging Policy ↗
- Reliable Freight and Logistics Services ↗
- Custom Formulation Solutions ↗
mikaVAE RDP Dispatch Moment
To meet customer demands, RDP is available for large-volume standalone shipments or mixed with products like cellulose ether (MikaZone), HPS (MikaUltra), and more. Our extensive product line offers one-stop solutions for concrete additives purchasing and shipping
Purchase high-quality RDP at competitive prices！
— Request Free Samples and Competitive Quotes —
Partner with us for greater success and long-term growth
Frequently Asked Questions
We follow sustainable production practices in line with China’s national environmental protection policies. Our dedicated waste management and dust control systems ensure safe disposal of waste materials and protect our employees’ work environment.
Raw Materials: We partner with top-tier global suppliers to ensure the high-quality foundation of RDP.
During Production: Using a Distributed Control System (DCS), we monitor equipment performance and production parameters in real-time, with dedicated staff overseeing the process from the control room.
Post-Production: Our quality control team conducts tests on key properties like ash content and viscosity, and stores samples for ongoing quality assurance.
