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What is elastomeric coating?

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Elastomeric wall coatings are acrylic latex paints applied in very thick films. They are flexible and tough, and they stretch as cracks appear to keep water out.

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Elastomeric wall coatings are approximately 10 times as thick as regular paints. The increased thickness means that there is a significantly higher initial cost compared to regular paint. Before covering a wall with EWC, painters must caulk all of the cracks larger than 1/16 of an inch. EWCs are not suitable for retaining walls or other surfaces that water might get behind. Users of EWCs can tint them to a variety of colors.

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