VINNAPAS® 547 ED (NJG)
VINNAPAS® 547 ED (NJG) is a versatile polymer dispersion with high water resistance and excellent compatibility towards hydraulic binders, pigments and fillers.
- VINNAPAS® 547 ED (NJG) is a dispersion based on vinyl acetate and ethylene.
- It is produced without using formaldehyde donors and without adding plasticizers or organic solvents.
VINNAPAS® 547 ED (NJG) offers several advantages in a wide range of building chemical and construction applications. It exhibits a high compatibility towards cement and its influence on cement setting is marginal. The dispersion is characterized by high bonding strength and good compatibility with inorganic fillers like CaCO3. VINNAPAS® 547 ED (NJG) is compatible with other dispersions (such as styrene/acrylic and pure acrylic dispersions) and especially suitable for use in applications such as waterproofing membranes (WPM), tile adhesives, external thermal insulation composite systems (ETICS/EIFS), primer and bonding agents as well as cement admixtures.
For typical application fields of VINNAPAS® 547 ED (NJG) you can refer to the section "application". Please discuss additional applications with your WACKER customer representative.
If the product is used in applications other than those mentioned, the choice, processing and use of it is the sole responsibility of the purchaser. All legal and other regulations must be complied with.
Slight color variations of the dispersible polymer powder may occure without impairing the product's functionality.
When the dispersion is stored in tanks, proper storage conditions must be maintained. VINNAPAS® 547 ED (NJG) has a shelf life of 9 months from the date of manufacture if stored in the original, unopened containers at temperatures between 5 and 40 °C. Iron or galvanized-iron equipment and containers are not recommended because the dispersion is slightly acidic. Corrosion may result in discoloration of the dispersion or its blends when further processed. Therefore the use of containers and equipment made of ceramics, rubberized or enameled materials, appropriately finished stainless steel, or plastic (e.g. rigid PVC, polyethylene or polyester resin) is recommended. 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. If the product is stored for a longer period, stirring is recommended before use.
Preservation for Transport, Storage and further Processing
VINNAPAS® 547 ED (NJG) is adequately preserved during transportation and storage if kept in the original, unopened containers. However, if it is transferred to storage tanks, the dispersion should be protected against microbial attack by adding a suitable preservative package.
Measures should also be taken to ensure cleanliness of the tanks and pipes. In unstirred tanks, a layer of preservative-containing water should be sprayed onto the surface of the dispersion to prevent the formation of unwanted skin and possible attack by microorganisms. The thickness of this water layer should be < 5 mm for low viscosity dispersions and up to 10–20 mm for high viscosity products. Proper procedures – periodic tank cleaning and sanitization – must be set up in order to prevent microbial attack. Contact your biocide representative/supplier for further plant hygiene recommendations. Measures should be taken to ensure that only clean air enters the tank when the dispersion is removed.
Finished products manufactured from polymer dispersions usually also require preservation. The type and scope of preservation will depend on the raw materials used and the anticipated sources of contamination. The compatibility with other components and the efficacy of the preservative should always be tested in the respective formulation. Preservative manufacturers will be able to advise you about the type and dosage of preservative required.
|Glass transition temperature
|Appearance of the dispersion film
|Protective colloid / emulsifier system||Predominant particle size
|Minimum film forming temperature
DIN ISO 2115
|VINNAPAS® 547 ED (NJG)||± 2 0 °C ± 2 32.0 °F||clear, glossy clear, glossy||聚乙烯醇 聚乙烯醇||约 0.5 - 1.0 µm 约 500E-9 - 0.00000100 mil||0 °C 32.0 °F|