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Sodium Polyacrylate Dispersant
DeCAL 2042 is a low viscosity product used to disperse inorganic pigments and fillers in water borne systems. It is especially suited for use in silk and gloss emulsion paints where its compatibility with glycols maintains the gloss of the system.
1. Typical Properties:
- Chemical nature Sodium salt of an acrylic copolymer in water
- Ionic character Anionic
- Appearance Straw coloured liquid
- pH 7.5
- Density 1.21g/cm³
- Solids content 40%
2. Applications:
(i) Decorative Paints and Coatings – DeCAL 2042 is an ideal dispersing agent for water borne high gloss coatings containing polypropylene glycol and other glycols used to promote wet edge time and film coalescence. DeCAL 2042 is effective at high temperatures above 100°C over a pH range of 5 – 12.
(ii) Adhesives & Latex Compounds – DeCAL 2042 is used to disperse fillers and pigments in many products such as tile adhesives, grouts, fillers and water based adhesives and glues.
(iii) Ceramics – DeCAL 2042 is used to stabilise dispersions of clay in ceramic casting slips. At high temperatures the polyphosphate dispersants sometimes used in water borne systems are not as stable to pH changes as DeCAL 2042. Therefore DeCAL 2042 offers much better stability and improved shelf life for water borne paints and coatings.
3. Incorporation: DeCAL 2042 should be thoroughly mixed with water before adding pigments and fillers to the system using high shear mixers. Using this method very high pigment loading can be achieved. The optimum dispersing efficiency is achieved at a pH 8.5 or thereabouts. The dosage required is between 0.5% - 2.0% calculated as supplied on weight of pigments and fillers.
4. Safety & Handling: DeCAL 2042 should be handled in accordance with good industrial practice. Detailed information is provided in Safety Data Sheet.
5. Storage: Although DeCAL 2042 is freeze thaw stable, it is recommended to store the product at temperatures above 5ºC to enable easy handling of the product. We hope this information will be of value and if necessary we will be glad to offer additional technical advice. Please note that all our information is given in good faith, we can assume no responsibility for any liability incurred.
Data and results should be confirmed by the Buyer by testing the product under its intended conditions of use. Version :12.03.02
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