WANWEI 7220 E
[Introduction]
WANWEI 7220 E is a multi-purpose dispersible polymer powder for dry mix mortars, specifically suited for tile adhesives and tile grouts. It is based on a flexible copolymer of vinylacetate, ethylene and methylmethacrylate and belongs to the product class WANWEI E which means that it provides enhanced properties, like excellent adhesion after water immersion and flexibility. WANWEI 7220 E is part of our standard range, offering you the best-in-class solution for a wide variety of applications.
[Properties]
• WANWEI 7220 E is a polymer powder and is dispersible in water.
• WANWEI 7220 E is ideal for modifying cementitious mortars, e. g. tile adhesives.
• WANWEI 7220 E contains a fine mineral filler as an antiblocking agent and is produced without the addition of organic solvents, plasticizers and film-forming agents.
• WANWEI 7220 E has no effect on rheological properties and is a polymer powder in the medium Tg range. It is suitable for formulating high-quality, low-emissions flexible tile adhesive that feature excellent tensile adhesion strength, especially after immersion in water and exposure to freeze/thaw cycles.
[Specification]
| Property | Condition | Value | Method |
|---|---|---|---|
| Ash content | 1000 °C | max. 17.5 % | specific method |
| Solids content | – | min. 98 % | DIN EN ISO 3251 |
| Bulk density | – | 400 – 550 kg/m³ | DIN EN ISO 60 |
| Particle size | > 400 µm | max. 4 % | DIN EN ISO 4610 |
[General Characteristics]
| Property | Condition | Value | Method |
|---|---|---|---|
| Appearance | – | white to light beige powder | Visual |
| Minimum film forming temperature | – | 5 °C | DIN ISO 2115 |
| Protective colloid / emulsifier system | – | polyvinyl alcohol | – |
[Applications]
• One-Component Cementitious Tile Adhesives
[Packaging]
25 kg paper bags Big Bags or bulk on request.
[Storage]
During storage, protect the product from contact with moisture. Prolonged storage at temperatures above 30 °C, especially in combination with pressure, humidity or exposure to sunlight, may result in blocking. Carefully seal any open containers and store them under suitable conditions. We recommend storing the product in a warehouse that provides cool and dry conditions. Do not store the product for more than six months, starting from the date at which it was received, unless the Certificate of Analysis contains a different date, which would take precedence. If the product is stored longer than recommended, it may still be used but users are advised to verify the properties required for the intended use.