Introduction of redispersible for ETICS/EIFS
● Appearance: White powder
● CAS No.: 24937-78-8
● Applications: Dry mix mortar
● Type: Flexible, Semi-flexbile, Rigid, & Hydrophobic
● 4 Prices: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.
Various kinds of redispersible with premium quality from Chinese factory
1. In ETICS/EIFS (External Thermal Insulation Composite Systems / External Insulation and Finish Systems), Redispersible (RPP / RDP) are essential functional additives. They modify cementitious mortars to meet the strict mechanical and environmental demands of exterior walls.
2. The following details the four main types of RDP (rigid, semi-flexible, flexible, and hydrophobic), their common characteristics, and their different applications in ETICS/EIFS.
| RDP Type | Primary ETICS Layer | Key Technical Function | Performance Benefit & Risk Avoidance |
|---|---|---|---|
| Rigid RDP | Adhesive Mortar (Masonry to Board) | Provides high initial grab & structural shear strength | Ensures firm anchoring of EPS/MW boards; unsuitable for base coats due to low crack resistance. |
| Semi-Flexible RDP | Standard Adhesive & Base-Coat Mortars | Balances tensile bond strength with moderate elasticity | Cost-effective all-rounder for standard facade systems under normal weather conditions. |
| Flexible RDP | Base-Coat / Reinforcement Render Layer | Superior elongation & dynamic crack-bridging capability | Absorbs severe thermal expansion/contraction & wind loads; prevents surface micro-cracking. |
| Hydrophobic RDP | Topcoat Render & Decorative Finish Mortars | Built-in water repellency & low water absorption | Prevents rainwater penetration, freeze-thaw damage, and efflorescence on exterior facades. |
Core benefits of Rigid Redispersible for ETICS/EIFS
Key Properties:High mechanical compressive strength,high elastic modulus,low film flexibility at low temperatures.
Rigid [redispersible] (High Glass Transition Temp, (Low Tg<0°C, typically -10°C to -15°C)
Key Properties: High mechanical compressive strength, high elastic modulus, low film flexibility at low temperatures.
Adhesive Mortars(Substrate Bonding):Used where high tensile bond strength and dimensional stability are needed under static loads,especially on rigid wall substrates(e.g.,concrete or brick walls).
Mineral Wool(MW)Boards:MW boards are vapor-permeable and heavy;they require high-anchoring-strength mortars rather than high elasticity.
Why not for Base Coats?Rigid mortars cannot absorb the thermal expansion and contraction stresses of exterior insulation boards,leading to surface cracking.
Storage
Please Store in a cool, dry place. Dry Conditions: Keep relative humidity (RH) below 50%–60%. RPP is thermoplastic and hygroscopic; elevated temperatures combined with moisture will cause the powder to soften and block (form hard clumps)
Keep Sealed: Always store in original, unopened multi-layer paper bags with PE inner liners. If a bag is opened, seal it tightly immediately after use.
Avoid Direct Sunlight: Keep stored bags away from direct sunlight, rain, and heating sources (e.g., radiators or steam pipes)
Packages
● 25kg net weight per plastic/paper bag, ● 500kg per jumbo bag on a pallet, Packing on request, ● 20'FCL: 520 bags=13 tons,
● 4. 40'HQ FCL: 1120 bags=28 tons, ● Shipping time: 5-10 days.
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Price Advantage & Factory Strength
♠ Offered Factory Price for every customer as we are one of redispersible (RDP powder) manfacturers over 30 years, we can provide factory price by per kg, per ton or per container.
♠ Got ISO 9001 / ISO 14001
♠ Free samples are affordable. OEM & ODM are welcomed.
♠ Offered OEM formula by the Experts of our team to meet your needs.
♠ Samples and packages can be customized.
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 for 34 years. And we have invested and innovated 11 production lines with annual output 100,000 tons.
Come on! Please contact us for free samples, latest quotations with TDS, trial orders or large orders. We will support your career.
Mobile phone: +86-155 2251 5351; WhatsApp: +86-155 2251 5351;
WeChat: 15522515351; Email: sales01@eclatmat.com
(factory pics)
