RDP (Redispersible Polymer Powder/Redispersible Powder) or VAE is a water-soluble re-dispersible powder. It is a copolymer of ethylene and vinyl acetate. It d issolves in water easily and forms emulsion quickly , RDP could offer s trong adhesive and stretching force to i mprove the workability, flexibility and water-proofing of the materials
.Redispersible Polymer Powder is a kind of free-flowing white powder,which is spray-dryed by polymer emulsion and after subsequent treatment to keep the stability of powder appearance and character. The mainly application is in construction dry-mixed mortar,and have excellent performance in increasing the dry mortar cohesion,adhesion and flexibility.
Redispersible polymer powder product is water soluble redispersible powder, divided into ethylene/vinyl acetate copolymer, with polyvinyl alcohol as a protective colloid, spray drying white powder adhesive. This powder can be quickly dispersed into emulsion after contact with water, because of the redispersed polymer powder has high bonding capacity and unique properties, such as: water resistance, construction and heat insulation, therefore, their range of application is extremely wide.
Redispersible Polymer Powder is the most important binder in cement-based, gypsum-based dry powder materials. Redispersible Polymer Powder is a spray-dried powder of polymer emulsion. Redispersible Polymer Powder is re-emulsified with water and has the same properties as the original emulsion, that is a film can be formed after water evaporation. This film has high toughness, weather resistance and adhesion to a substrate. In addition, the latex powder with hydrophobic properties can improve the waterproof performance of the waterproof mortar.
| Technical Date |
HEARST RD 503M |
HEARST RD 760F |
HEARST RD 740H |
HEARST RD 745W |
| Polymer Base |
VAC/E |
VAC/E |
VAC/E |
VAC/E/AC |
| Protective Colloid |
Polyvinyl Alcohol |
Polyvinyl Alcohol |
Polyvinyl Alcohol |
Polyvinyl Alcohol |
| Solid Content |
≥ 99.0% |
≥ 99.0% |
≥ 99.0% |
≥ 99.0% |
| Ash Content |
11%±2 |
11%±2 |
11%±2 |
11%±2 |
| Stacking Density (g/L) |
450-550 |
450-550 |
450-550 |
450-550 |
| Average Particle Size(um) |
~80 |
~80 |
~80 |
~80 |
PH Value
PH |
7.0-9.0 |
7.0-9.0 |
7.0-9.0 |
7.0-9.0 |
| Tg(ºC) |
3 |
-8 |
16 |
-11 |
| MFFT(ºC) |
0 |
0 |
4 |
0 |
APPLICATION:
- Tile adhesive
- Bonding mortar for external wall insulation system
- External wall external thermal insulation system
- Joint Fillers
- Self-flowing cement mortar
- Inner and outer wall flexible putty
- Flexible anti-crack mortar
- Drymix powder coating
- Polymer mortar products with higher requirements for flexibilit
- Supply high flexibility
- Increase adhesion strength
- Improves workability
- Improve water proofing of mortar
- Reduce water absorption
- Excellent rheology
- Increased impact and abrasion resistance
- Higher durability and freeze thaw resistance
- Improved wetting of the substrate
Benefits:
· Application versatility
· Improves workability
· Improves tensile, compression and flexural strength
· Improves transversal deformation
· Yields excellent cost-performance ratio in cement-based tile adhesives
· Excellent impact resistance
· Helps reduce formation of cracks caused by shrinkage
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