PRIMIS® KT 3000
PRIMIS® KT 3000 is a drying and setting additive for water borne paints and plasters especially for all coating systems based on VINNAPAS® dispersions.
- Allows application of exterior paints and plasters at critical climatic conditions such as low temperature and high humidity
- Protects against damage from early rain
- Extends the period during which paints and plasters can be applied outside
- Resulting formulations are solvent free
- Compatible with many binder systems
PRIMIS® KT 3000 is a high performance additive for exterior architectural coating applications that should be applied under critical weather conditions like low temperatures and high humidity. Under these conditions, PRIMIS® KT 3000 provides early rain resistance and fast mechanical strength to paints and plasters.
The extent of the acceleration depends on the amount of additive used as well as the composition of the paint and plaster.
PRIMIS® KT 3000 is usually added to the formulation in amounts of 0,1 to 0 ,3 %. It is added at the end of the production process. To customize the setting rate, always test the actual effect on drying / setting in the particular system beforehand.
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Wacker Chemie AG
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.