WANWEI 240 HD
[Introduction]
WANWEI 240 HD is a multi-purpose construction dispersion for liquid and paste, cement-free binder technology,specifically suited for primers, ready-to-use tile adhesives and one-component dispersion-based water-proofing membranes. It is based on a flexible copolymer of styrene and acrylate and belongs to the product class WANWEI HD which means that it provides a remarkable hydrophobic effect in addition to the excellent adhesion even under wet conditions.
[Properties]
• WANWEI 240 HD is a fine-particle 50% dispersion of a styrene/acrylic acid ester copolymer in water.
• Films based on WANWEI 240 HD possess high water resistance and excellent adhesion even in wet conditions.
• WANWEI 240 HD is also produced without the use of film-forming agents.
[Specification]
| Property | Condition | Value | Method |
|---|---|---|---|
| Viscosity, dynamic | 23 °C | Brookfield, spindle 3 / 20 rpm | 700 – 3000 mPa·s | DIN EN ISO 2555 |
| pH | – | 7.0 – 8.0 | DIN/ISO 976 |
| Solids content | – | 49 – 51 % | DIN EN ISO 3251 |
[General Characteristics]
| Property | Condition | Value | Method |
|---|---|---|---|
| Minimum film forming temperature | – | approx. 0 °C | DIN ISO 2115 |
| Protective colloid / emulsifier system | – | surfactants | – |
| Appearance of the dispersion film | – | clear, glossy | Visual |
| Glass transition temperature | – | approx. 0 °C | specific method |
| Cement compatibility/td> | – | incompatible | specific method |
| Predominant particle size | – | approx. 100 nm | specific method |
[Applications]
• Primer
• Ready-to-Use Tile Adhesives
[Packaging]
Non-returnable PE drums of 150 kg capacity (standard dispatch quantity: only fully-loaded pallets à 750 kg), non-returnable containers of 1 t capacity and road tankers.
[Storage]
When the dispersion is stored in tanks, proper storage conditions must be maintained. The product has a shelf life of 6 months starting from the date of receipt if stored in the original, unopened containers at temperatures between 5 and 30°C. Any longer periods for the maximum storage period that may be described in the Certificate of Analysis which accompanies each shipment of the product, take preference over this suggestion in which case the time period stated in the Certificate of Analysis shall be solely authoritative. Iron or galvanized iron containers and equipment are not recommended. Corrosion could result in discoloration of the dispersion or blends made from it in further processing. We therefore recommend the use of containers and equipment made of ceramic, rubberized or enameled materials,appropriately finished stainless steel, or plastic (rigid PVC, polyethylene or polyester resin). As polymer dispersions may tend to superficial film formation, skins or lumps may be formed during storage or transportation. A filtration process is thus recommended prior to utilization of the product.