Product line
Redispersible polymer powder (VAE / RDP)
Product overview
What RDP is
RDP is spray-dried VAE copolymer powder that redisperses in water during mixing. In tile adhesives and skim coats it raises tensile adhesion, flexibility and deformation while the cement hydrates. It is the polymer half of every C2-class tile adhesive formulation.
Benefits
Key benefits
Raises tensile adhesion and deformability in cementitious systems
Redisperses fully in cold water at standard mixing speeds
VAE base: low VOC, no plasticiser migration
Applications
Typical applications
- Tile adhesive (C2)
- Skim coat / wall putty
- EIFS adhesive
- Self-leveling
Key facts
RDP at a glance
| Property | Value |
|---|---|
| CAS number | Mixture (VAE copolymer) — no single CAS |
| HS code | 3905.29 |
| Appearance | White free-flowing powder |
| Pack sizes | 25 kg · 12.5 kg · 6.25 kg · 1,000 kg jumbo bag |
The HS code is the international 6-digit code; destination customs classification governs. Pack sizes are the standard range — other sizes are quoted on request.
Packaging & loading
How RDP ships
| Item | Detail |
|---|---|
| Pack sizes | 25 kg · 12.5 kg · 6.25 kg · 1,000 kg jumbo bag |
| 20′ FCL — loose | 18 t |
| 20′ FCL — palletised | 15 t (20 pallets × 750 kg) |
| Custom printing | Available on all pack sizes; artwork design free of charge |
Loading figures are for a 20-foot container. Exact quantity depends on pallet pattern and on how the bags are stacked — we confirm it against your order. Figures marked estimated are converted from the measured bulk volume.
Part of ALCellu's 60,000 t/yr production capacity.
FAQ
Questions buyers ask about RDP
What does RDP do in a tile adhesive?
RDP raises tensile adhesion, flexibility and deformation while the cement hydrates. It is the polymer half of a C2-class tile adhesive: the cement gives compressive strength and the redispersed polymer film bridges the interface to the tile and to the substrate. It also improves cohesion in skim coat, EIFS adhesive and self-levelling compounds.
Is RDP a liquid or a powder?
RDP is a powder. It is a spray-dried VAE copolymer that redisperses in water during mixing, so it goes into the dry blend with the cement and the filler and needs no liquid dosing line. Because it is a mixture rather than a single molecule it has no single CAS number; the HS code is 3905.29.
How is RDP packed and shipped?
RDP ships in 25 kg, 12.5 kg and 6.25 kg bags or 1,000 kg jumbo bags. Custom printing is available on all pack sizes and the artwork design is free of charge. The minimum order is 1 metric ton. A 20-foot container takes 18 t loose or 15 t on pallets. A free sample is available so you can run a trial mix before ordering.
Ask for the RDP TDS and a free sample
Tell us the system you are formulating and the standard you work to. We reply with the TDS, the pack sizes and the loading figure for your quantity.