VINNAPAS® 4121 N
VINNAPAS® 4121 N is a dispersible polymer powder for dry mix mortars, specifically suited for price-optimized ETICS. It is based on a semi-flexible copolymer of vinylacetate and ethylene and belongs to the product class VINNAPAS® N which means that it has a neutral effect on rheology and provides very good adhesion on organic (polystyrene) and inorganic (concrete) substrates. Additionallly VINNAPAS® 4121 N can be used for C1- and simple C2-tile adhesives.
- VINNAPAS® 4121 N is a copolymer powder of vinyl acetate and ethylene and is dispersible in water.
- Compounds modified with VINNAPAS® 4121 N 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.
- VINNAPAS® 4121 N contains a fine mineral filler as an antiblocking agent. It is produced without the addition of organic solvents, plasticizers and film-forming agents.
- VINNAPAS® 4121 N has no effect on rheological properties and is a dispersible polymer powder in the higher Tg range. It is suitable for formulating compounds with good adhesion to organic (polystyrene) and inorganic (concrete) substrates.
For typical application fields of VINNAPAS® 4121 N, refer to the section "application". Please discuss additional applications with your WACKER customer representative.
For the production of ready-mixed dry mortars, such as adhesives and patching compounds, blend VINNAPAS® 4121 N with the other dry ingredients in appropriate equipment. Temperatures should not be allowed to rise excessively during mixing because otherwise the dispersible polymer powder could agglomerate by virtue of its thermoplastic properties. 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.
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Big Bags or bulk on request.
During storage, protect VINNAPAS® 4121 N from contact with moisture. Prolonged storage at temperatures above 30 °C, including in combination with pressure load, humidity or exposure to sunlight, may result in blocking. Carefully seal any open containers and store them in suitable conditions. We recommend storing VINNAPAS® 4121 N in a warehouse that provides cool and dry conditions. Do not store VINNAPAS® 4121 N for more than six months, starting from the date at which it was received. Longer periods of maximum storage may be described in the Certificate of Analysis and would take precedence over the above six-month maximum. If the product is stored longer, it may still be used but users are advised to verify the properties required for the intended use.