Semi-flexible Copolymer Redispersible Powder Chemical Introduction
● Appearance: White powder
● CAS No.: 24937-78-8
● Applications: Tile adhesives (C1 grade), tile grouts, etc.
● Type: 1. economical 2. standard 3. superior quality 4. customized formulations
● Tel/WhatsApp: +86-155 2251 5351
Email: sales01@eclatmat.com
● Free samples & OEM are available.
Copolymer redispersible powder for dry-mix mortar
Copolymer redispersible powder is a free-flowing, organic polymer powder which can be dissolved in water. It produced through the spray-drying of liquid polymer emulsions (most frequently Vinyl Acetate-Ethylene / VAE co-polymers). When mixed with water, Copolymer redispersible powder "redisperses" back into a stable liquid emulsion with properties identical to the original liquid latex.
Core Benefits of Semi-flexible Copolymer Redispersible Powder
Structural Stability: Combines necessary crack-bridging capability with structural rigidity.
Stress Absorption: Effectively absorbs daily environmental stresses (such as thermal expansion and minor substrate movement) without compromising surface hardness.
Strong Adhesion: Significantly improves tensile bonding strength across various substrates, including concrete, cement rendering, and ceramic tiles.
Anti-Slip Performance: Delivers excellent initial grab and cohesive strength, preventing heavy tiles from slipping during installation.
Economical Versatility: Provides high-performance polymer modification at a much lower cost than high-flexibility (low Tg) powders.
Technical Guide
1. Similarities (Common Features) for semi-flexible and rigid redipersible powder
Both semi-flexible and rigid redipersible powder share basic fundamental mechanisms when used as modifiers in cement- or gypsum-based mortars
2. Key Differences
The core distinction between the two lies in their Glass Transition Temperature (Tg), stiffness vs. elasticity, and crack resistance.
| Technical Property | Rigid RDP | Semi-Flexible RDP |
|---|---|---|
| Glass Transition Temp (Tg) | ≥ 10°C (typically 10°C to 20°C) | Around 0°C (typically -5°C to 10°C) |
| Min. Film Forming Temp (MFFT) | ≥ 10°C | 0°C to 5°C |
| Ash Content (800°C) | ≤ 12 ± 2% | ≤ 14 ± 2% |
| Solid Content | ≥ 98.0% | ≥ 98.0% |
| Bulk Density | 450 – 650 g/L | 400 – 600 g/L |
| Film Characteristics | Hard, rigid, and tough film with high surface strength. | Balanced film with moderate elasticity and cohesive support. |
| Compressive vs Flexural | High Compressive & Shear Strength | Balanced Tensile & Flexural Strength |
| Elongation at Break | Low (< 10%) | Moderate (15% – 30%) |
Specifications
| Non-volatile matter |
Bulk density (KG/M³) |
PH Value |
Ash Content |
Grain Dia. (D50) μm≤ |
Tg (°C) |
Type |
|---|---|---|---|---|---|---|
| ≥98.0% | 500-650 | 5.0-9.0 | ≤14±2% | <100 | 0 | Semi-flexible |
| ≥98.0% | 500-650 | 5.0-9.0 | ≤12±2% | <100 | 15 | Rigid |
| ≥98.0% | 500-650 | 5.0-9.0 | ≤12±2% | <100 | -15 | Flexible |
| ≥98.0% | 500-650 | 5.0-9.0 | ≤10±2% | <100 | -15 | Hydrophobic |
Applications
1. Standard Tile Adhesives (C1 Grade)
2. Flexible Tile Grouts (Joint Fillers)
3. Large-Format Tile Adhesives (Indoor)
4. Exterior Flexible Wall Putty
5. Interior Heavy-Duty Skim Coat
6. Textured & Decorative Finish Mortars
7. Insulation Board Bonding Mortars
8. Standard Base-Coat / Anti-Crack Renders
9. Cementitious Self-Leveling Underlayments
10. Semi-Flexible Waterproof Slurries
Packages
25kg net weight per plastic/paper bag, 500kg per jumbo bag on a pallet, Packing on request, 20'FCL: 520 bags=13 tons,
40'HQ FCL: 1120 bags=28 tons, Shipping time: 5-10 days.
(shipping pics)
Price Advantage & Factory Strength
♠ Offered Factory Price for every customer as per kg, per ton or per container;
♠ Free samples are affordable. OEM are welcomed;
♠ Customized samples and packages;
♠ Got ISO 9001 / ISO 14001;
♠ Offered customized formulations by the Experts in our team;
♠ The annual output of Tianjin Eclat Co.,Ltd. products is:
1. Redispersible Polymer powder RDP: 30,000 tons; 2. PCE powder: 10,000 tons;
3. PVA powder: 10,000 tons; 4. HPMC,HEMC,HEC,CMC: 40,000 tons;
5. PP Fibres(Anti-crack fibers): 10,000 tons.
Company Profiles
We are Tianjin Eclat Co., Ltd. This is a subsidiary company of Anjiafa Building Materials Company, which is engaged in construction additives production over 30 years. We've invest
For free samples, quotations, and customized products, or orders, please contact us:
Mobile phone: +86-155 2251 5351; WhatsApp: +86-155 2251 5351;
WeChat: 15522515351; Email: sales01@eclatmat.com
(factory pics)
