Improve the brushability of your paints with alkyd emulsions from ASK Chemicals

Improve the brushability of your paints with alkyd emulsions from ASK Chemicals

Monday, 14 February, 2022

For DIY lacquers we seek properties such as elasticity, hardness and weathering resistance. Although water-based alkyd emulsions meet these requirements, the fluidity properties they possess do not match those of solvent-based systems.

Conventional alkyd emulsions have a pseudoplastic behaviour, as opposed to solvent systems which have good brushability. This difference in terms of rheological behaviour can present problems when water-based systems are applied.

For example, when applying an aqueous alkyd paint with a brush, we generate a shear force that keeps the viscosity low. However, the viscosity rapidly increases upon ceasing application, hindering the smooth spread and levelling of the paint.

ASK Chemicals has developed the NECOWEL 5100 alkyd emulsion with improved fluidity properties, making it similar to solvent-based alkyd systems.

This alkyd emulsion is modified with aliphatic PU and features a rheological modification which means that in most cases it is not necessary to incorporate other associative thickeners.

The most outstanding properties of this aqueous emulsion are:

Excellent levelling
Open time of at least 15 minutes
Fast drying
Yellowing and weathering resistance
Early blocking resistance
High gloss
Free of VOCs, SVOCs and APEO

In addition to DIY lacquers, at Comindex we also recommend this emulsion for topcoats and wood lacquers.

For further information about these products, please contact our technical advisory team.

URL: https://specialties.ask-chemicals.com/

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