Getting to know Elastomerics

September 15, 2011

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The majority elastomeric coatings are water-based and formulated from an acrylic resin. All acrylic systems have the ability to breath transmit water vapor and will provide waterproof protection for quite a few years and clean up with water.

New resin systems also give the elastomeric coatings exceptional color preservation and outstanding durability. When in place, the elastomeric coating systems are flexible and waterproof, but they can easily be maintained by pressure cleaning to remove dust, dirt or other contaminates.

When it comes to aesthetics, EWCs can be tinted in a rainbow of colors, but you always see pastels or earth tones. Smooth elastomerics usually have a flat or satin sheen. Textured elastomerics can be found in many different surface profiles and can be used to help hide surface defects. Nevertheless, a number of painting contractors warn that enormous, textured particles can develop weak spots in the film coating.

EWCs are designed to be applied to exterior masonry walls, such as concrete block, tilt-up, pre-cast poured-in-place concrete, stucco, brick, exterior insulation finishing systems, fiber cement siding and more. A number of painting companies use EWCs on wood, but, to be safe, it’s a good suggestion to check with the EWC manufacturer if the substrate is other than masonry.

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