How to produce waterborne decorative gloss paints
Tuesday, 26 October 2010
The required gloss levels can be achieved by using waterborne alkyd resins with specifically adapted dispersants and rheology modifiers.
Evolving regulations and market demands make it necessary to produce low VOC waterborne decorative gloss paints Source : Coatex
Despite their generally good properties, acrylic emulsion paints cannot match the high gloss levels achieved by traditional solventbased alkyd paints. However, evolving regulations and market demands make it necessary to produce low VOC waterborne decorative gloss paints. The required gloss levels can be achieved by using waterborne alkyd resins, but there may be issues with gloss retention and storage stability. In particular, the emulsification system used to render the alkyds water-compatible may affect the performance of pigment dispersants and rheology modifiers as well as impairing performance of the applied film. Some ways to resolve these problems by reformulation with thickeners and dispersants specifically adapted to this task are described in a technical paper in the November issue of the EUROPEAN COATINGS JOURNAL.
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