VINNAPAS® 446 ND
VINNAPAS® 446 ND is a dispersion used as a bonding agent and a polymer modifier for cement based mixes.
Eigenschaften
- VINNAPAS® 446 ND is a dispersion based on vinyl acetate and ethylene. The product is stabilized by protective colloid.
- VINNAPAS® 446 ND is used in products that meet ASTM C 1059 requirements for Type I and II Latex Bonding Agents. It is produced without using organic solvents and/or plasticizer donors.
Datenblätter
VINNAPAS® 446 ND exhibits a high compatibility towards cement, and its effect on cement setting is marginal. It can be used to formulate very workable and ductile mortars with very good adhesive properties, accompanied by high cohesive strength. Therefore, this product can be used as an organic binder for cement mortars such as water proofing membranes, 2-component tile adhesive and concrete repair mortars.
VINNAPAS® 446 ND offers a superior balance of adhesive /cohesive properties, which is advantageous in the use as a general purpose bonding agent.
VINNAPAS® 446 ND can be used to improve the adhesion to various substrates like concrete, masonry, polystyrene and exterior sheathing. The impact resistance and the flexibility of a cementitious base coat are improved.
In gypsum joint compounds, VINNAPAS® 446 ND improves adhesion and imparts better workability.
For typical application fields of VINNAPAS® 446 ND you can refer to the section "application". Please discuss additional applications with your WACKER customer representative.
Processing
VINNAPAS® 446 ND can be blended with most anionic and/or nonionic aqueous polymer dispersions. However, the compatibility of the mixture should be tested by means of storage tests. VINNAPAS® 446 ND has a minimum film formation temperature of 0°C. Therefore, there is no need to add any film-forming or coalescing agents to the formulation.
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 polymer granulate may occure without impairing the product's functionality.
Verpackung / Gebinde
Please contact Wacker Chemical Corporation for packaging and shipping information.
In case of industrial usage, please confirm delivery times. If larger amounts are required, please give advance notification. For more commercial and technical information please contact a Wacker Chemical Corporation representative.
Wacker Chemical Corporation
6870 Tilghman Street
Allentown, PA 18106-9346
USA
Technical Center Allentown
Tel. +1 800 523-9476
Fax +1 517 264-4088
dispersions.customerservice@wacker.com
Lagerung
When the dispersion is stored in tanks, proper storage conditions must be maintained. If stored in the original, unopened containers at cool (below 30 °C), but frost-free temperatures the product has a shelf life of 9 months from the date of manufacture. 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 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 form during storage or transportation. Filtration is therefore 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. To maintain proper storage conditions appropriate measures should also be taken to ensure cleanliness of the tanks and pipes. In a storage tank in which the product is not stirred, it is advisable to contact your biocide representative/supplier. Proper procedures must be set up in order to prevent microbial attack between necessary periodic tank cleaning and sanitization. These procedures will vary, since loading and unloading practices in each storage situation will differ slightly. 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.
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