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VINNAPAS® 323

VINNAPAS® 323 is a poly(vinyl alcohol) stabilized vinyl acetate-ethylene copolymer dispersion with a glass transition temperature (Tg) of +23 °C. It was developed as a fast setting, high heat resistant dispersion with fully hydrolyzed PVOH compatibility.



Eigenschaften

VINNAPAS® 323 is designed for use as a base for high-speed packaging applications. It exhibits excellent wet tack, speed of set and medium plasticizer thickening response. Because of its poly(vinyl alcohol) stabilization and excellent mechanical stability, this dispersion can be used in a variety of roll, extruder, or spray applications. The dry film is tack free and heat sealable. This dispersion is compatible with both fully and partially hydrolyzed alcohol. The very good water resistance can be enhanced when the dispersion is compounded with fully hydrolyzed alcohol. Having the highest Tg, this dispersion exhibits the highest heat resistance, high tensile strength, and moderate flexibility.

Spezifische Merkmale von VINNAPAS® 323

  • ohne APEO hergestellt

Disclaimer

Alle unsere Angaben beruhen auf bestem Wissen. Allerdings übernehmen wir hierfür keine Haftung oder Gewährleistung und behalten uns jederzeit technische Änderungen vor. Es liegt in der eigenen Verantwortung des Käufers, die Angaben sowie die Geeignetheit unseres Produktes für den vorgesehenen Einsatzzweck vor dem Gebrauch zu überprüfen. Vertragliche Regelungen gehen immer vor. Der Gewährleistungs- und Haftungsausschluss gilt - insbesondere im Ausland - auch im Hinblick auf Schutzrechte Dritter.

Vor Frost schützen.

Lagerung

When VINNAPAS® 323 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 VINNAPAS® 323 has a shelf life of 9 months from the date of manufacture. 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

VINNAPAS® 323 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 VINNAPAS® 323 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.

Vertrieb & Support

Wacker Chemie AG
Heilbronner Strasse 74
70191 Stuttgart
Deutschland
+49  711  61942-0 (Phone)
+49 711 61942-61  (Fax)
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