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Vinabond N517
Vinabond® N517 is a very flexible dispersible polymer powder based on vinyl acetate and ethylene with very good tensile adhesion strength particularly on organic surfaces combined with good crack-bridging properties and good workability.
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PRODUCT DESCRIPTION
Vinabond® N517 is a copolymer powder of vinyl acetate,ethylene and acrylic acid and is dispersible in water. Its glass transition temperature is below minus 10 degrees centigrate. Compounds modified with Vinabond® N517 exhibit improved adhesion, flexural strength, deformability, abrasion resistance and are easier to process. Leveling, thixotropy and water retention are essentially unaffected. The product is ideal for use in combination with other mortar additives intended to enhance specific properties.
Vinabond® N517 contains a fine mineral filler as an anti-blocking agent. It is produced without the addition of organic solvents, plasticizers and film-forming agents.
APPLICATION METHODS
For the production of ready-mixed dry mortars, such as adhesives and troweling compounds, blend Vinabond® N517 with the other dry ingredients in appropriate equipment. Temperatures should not be allowed to rise excessively during mixing because otherwise the redispersible polymer powder could agglomerate and lead to the formation of small lumps of resin. The mortar is prepared for use by adding the recommended amount of water and mixing mechanically or by hand. Since hand mixing generates little shear force, we recommend allowing the fresh mortar to slake for 5 minutes and then stirring it again. This is usually unnecessary where mechanical mixers are employed.
