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New Reactive Diluent to Reduce the VOC Content of Polyurethane Acrylic Coatings

High-solids, two-component acrylic polyurethane coating formulations were prepared using a new low-viscosity, reactive diluent that incorporates directly into the final polymer network. The resulting acrylic coatings were found to increase the solids content of formulations without compromising mechanical performance. Acrylic polyurethane coating samples containing the diluent were evaluated for weatherability performance via QUV and environmental chamber studies. 

Product Number: 51217-050-SG
Author: Christopher Letko, John Argyropoulos, Amber Stephenson
Publication Date: 2017
Industry: Coatings
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$20.00
$20.00

High-solids, two-component acrylic polyurethane coating formulations were prepared using a new low-viscosity, reactive diluent that incorporates directly into the final polymer network. The resulting acrylic coatings were found to increase the solids content of formulations without compromising mechanical performance. Acrylic polyurethane coating samples containing the diluent were evaluated for weatherability performance via QUV and environmental chamber studies. The kinetic impact of the new reactive diluent on the rate of cure was evaluated using dry time and Brookfield viscosity measurements. Acid additives were found to enable tuning of pot-life values at the higher solid levels enabled by the reactive diluent.

High-solids, two-component acrylic polyurethane coating formulations were prepared using a new low-viscosity, reactive diluent that incorporates directly into the final polymer network. The resulting acrylic coatings were found to increase the solids content of formulations without compromising mechanical performance. Acrylic polyurethane coating samples containing the diluent were evaluated for weatherability performance via QUV and environmental chamber studies. The kinetic impact of the new reactive diluent on the rate of cure was evaluated using dry time and Brookfield viscosity measurements. Acid additives were found to enable tuning of pot-life values at the higher solid levels enabled by the reactive diluent.

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