VINNAPAS® 530 ND
VINNAPAS® 530 ND is a construction dispersion for primers, cement admixes and repair mortars. VINNAPAS® 530 ND is based on a vinyl acetate/ethylene copolymer. It reduces the elastic modulus and enhances adhesion
- VINNAPAS® 530 ND is an unplasticized 55% dispersion of a vinyl acetate/ethylene copolymer in water.
- VINNAPAS® 530 ND is suitable for modifying inorganic binders, such as cement, lime and gypsum, and improves their tensile adhesive strength, flexural strength, plasticity, abrasion resistance and workability.
- The dispersion can also be used as a sole binder for joint fillers, surface fillers and coatings.
Primers, cement admixes and concrete repair mortars are the most important applications for VINNAPAS® 530 ND. VINNAPAS® 530 ND increases mechanical strength and significantly improves adhesion to the substrate. Formulations based on VINNAPAS® 530 ND are elastic and resistant to weathering and provide excellent anchorage to organic and inorganic substrates. The dispersion is therefore ideal for applications that require flexibility and good adhesion.
For typical application fields of VINNAPAS® 530 ND, refer to the section "application". Please discuss additional applications with your WACKER customer representative.
VINNAPAS® 530 ND can be blended with most VINNAPAS® dispersions and many other aqueous polymer dispersions in any ratio. When blending, it is important to adjust the pH of both dispersions which are to be blended in a pH range in which both dispersions are stable. Storage tests should be carried out to check the compatibility of the mixture.
If the product is used in applications other than those mentioned, the choice, processing and use of the product is the sole responsibility of the purchaser. All legal and other regulations must be complied with.
For questions concerning food contact status according the chapter 21 CFR (US FDA) and German BfR, please feel free to contact us.Wacker Chemie AG Hanns-Seidel-Platz 4 D-81737 München Germany
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.
Preservation for Transport, Storage and further Processing
The product 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.