EverStar Group has been manufacturing high-performance Redispersible Polymer Powder Rdp Vae Redispersible Powder for over 13 years, serving construction chemical markets across 50+ countries. Our Factory features large-scale automated production lines with 5,000+ tons of on-site inventory, ensuring you receive consistent quality and fast delivery every time. This free-flowing white powder is produced through spray-drying of Vinyl Acetate-Ethylene (VAE) emulsion, redispersing instantly in water to form a stable latex film. It transforms ordinary cement mortar by eliminating brittleness and low tensile strength—two chronic pain points in dry-mix Applications. When you add our RDP to tile adhesives, EIFS systems, or self-leveling compounds, it forms a flexible polymer network that bridges micro-cracks and dramatically improves adhesion to challenging substrates like EPS boards and large-format porcelain tiles.

You require a accomplice who gets it both chemistry and your trade weights. Our in-house R&D research facility works around the clock to create custom details custom fitted to your climate conditions and substrate sorts. Whether you're defining C2S2 tile cements for swimming pools or impact-resistant renders for high-rise veneers, we give the correct VAE, VeoVa, or acrylic review you need.
Our fabricating advantage straightforwardly benefits you:
| Parameter | Value |
|---|---|
| Appearance | White to off-white free-flowing powder |
| Polymer Type | Vinyl Acetate-Ethylene (VAE) / VAE-VeoVa / Acrylic |
| Solid Content | ≥98% |
| Ash Content | 10-14% (anti-blocking agent) |
| Bulk Density | 400-600 g/L |
| Minimum Film Forming Temperature (MFFT) | 0-5°C |
| Glass Transition Temperature (Tg) | -10 to +15°C (grade-dependent) |
| Particle Size | ≥95% through 400 μm (redispersible) |
| CAS Number | 24937-78-8 (VAE copolymer) |
| Packaging | 25kg bag with moisture-barrier PE liner |
Note: Product specifications may be adjusted during product iteration and optimization. Please submit your inquiry to us for the latest data and official COA documents.
Core Performance BenefitsSuperior Adhesion & Flexibility
Our Redispersible Polymer Powder Rdp Vae Redispersible Powder creates a three-dimensional polymer film network within your mortar matrix. This film wraps around cement particles and penetrates substrate pores, delivering bond strengths exceeding 1.5 MPa in standard pull-off tests. You'll notice immediate improvements in:
Think of HPMC and RDP as complementary accomplices. HPMC gives you the fresh-state workability—open time, list resistance, and smooth troweling. RDP takes over in the solidified state, giving long-term grip and mechanical quality. Together they empower you to accomplish EN 12004 C2S1/C2S2 classifications for tile cements and meet exacting EIFS execution standards.
The polymer film shaped by our RDP pieces capillary water pathways in renders and outside separator frameworks. In quickened weathering tests, mortars containing our powder keep up over 90% of unique bond quality after 50 freeze-thaw cycles—critical for exteriors in mainland climates.
When you're holding EPS or XPS separator sheets to concrete dividers, you confront wind loads, warm cycling, and UV presentation. Our RDP gives the affect resistance and cement constrain essential to keep frameworks secure for 25+ a long time. It works particularly well in base coats and wrap up renders where split resistance is non-negotiable.
Large-format porcelain tiles (600×1200mm) and low-absorption common stones request prevalent wet-grip and shear quality. At doses of 3-5%, our item guarantees your cement keeps up bond judgment indeed in swimming pools, saunas, and high-traffic commercial lobbies.
You require flowability, quick quality advancement, and scraped spot resistance. Our acrylic-modified RDP grades convey all three. They diminish tidy arrangement, dispense with surface splitting, and permit foot activity in as small as 4-6 hours—speeding up venture timelines and diminishing labor costs.
Every batch undergoes rigorous testing before it leaves our factory:
You receive a Certificate of Analysis with every shipment, giving you full traceability and peace of mind.

RDP is hygroscopic and thermoplastic, so proper storage protects your investment:
Storage Conditions:
Shelf Life:
Handling Tips:
Inappropriate capacity over 30°C or >65% stickiness causes irreversible dampness retention and molecule coalescence, crushing redispersibility. Take after these rules to keep up full item performance.

Q: What's the commonplace measurement of Redispersible Polymer Powder in tile adhesives?
A: For standard C1 cements, utilize 2-3% by weight of add up to dry mortar. For C2 high-performance cements (deformable, amplified open time), increment to 3-5%. Continuously run lab trials to optimize for your particular cement sort and sand grading.
Q: Can I utilize RDP in gypsum-based systems?
A: Completely. Our VAE-based RDP works superbly in gypsum mortars and joint compounds. It progresses split resistance and surface hardness. Utilize 1-2% measurement for insides gypsum applications. Guarantee the gypsum pH is controlled, as extraordinary alkalinity can influence film formation.
Q: How does RDP make strides water resistance in renders?
A: Amid mortar curing, RDP particles coalesce to frame a ceaseless hydrophobic film all through the cement lattice. This film pieces capillary pores and diminishes water retention by 40-60% compared to plain cement mortar, avoiding efflorescence and freeze-thaw damage.
Q: What's the distinction between VAE and VeoVa copolymer RDP?
A: Standard VAE offers fabulous general-purpose grip and adaptability. VeoVa copolymer RDP (VAE-VeoVa tertiary copolymer) gives improved hydrophobicity and UV resistance, making it perfect for outside applications uncovered to rain and daylight. VeoVa grades taken a toll 10-15% more but convey prevalent long-term durability.
Q: How do I know if my RDP has debased amid storage?
A: Perform the water scattering test. Include 50g powder to 100mL water and blend energetically for 2 minutes. New RDP shapes a uniform smooth emulsion. Corrupted powder appears protuberances, coarseness, or fragmented scattering. If you see these signs, the redispersibility is compromised and execution will suffer.
Q: Can I combine RDP with cellulose ethers like HPMC?
A: Yes, this is the industry-standard approach. HPMC controls water maintenance and workability in the new state. RDP gives hardened-state quality and attachment. Together they make a synergistic impact. Normal combination: 0.2-0.4% HPMC + 2-5% RDP for tile adhesives.
Q: What Certifications does EverStar's RDP meet?
A: Our generation complies with ISO 9001 quality administration and EU REACH enlistment. We give full specialized information sheets, security information sheets (SDS), and batch-specific Certificates of Examination. For clients requiring extra certifications, we back third-party testing to EN, ASTM, or JIS benchmarks.
Contact Us at info@cneverstar.com for Redispersible Polymer Powder Rdp Vae Redispersible Powder and let's build better mortars together.