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Sealer Beefs Up Alkali Resistance

Monday, January 27, 2014

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Dunn-Edwards Corp. has reformulated its EffStop Premium masonry primer/sealer to improve its alkali and efflorescence resistance.

The epoxy-fortified acrylic is designed for interior and exterior use on properly cured tilt-up concrete, poured-in-place concrete, stucco, and block.

Secondary Efflorescence
Wikimedia Commons / Achim Hering

Eff-Stop Premium is designed to prevent damaging efflorescence on interior and exterior masonry structures.

“The new and improved Eff-Stop Premium provides key improvements in alkali resistance, making it suitable for use on surfaces with a pH level of 6 to 13.” said Ethan Opolion, product manager.

Like all other Dunn-Edwards products, Eff-Stop Premium is eco-friendly, ethylene glycol (EG)-free, and produced in the world’s only LEED Gold-certified paint manufacturing plant.

More information: or Product Information sheet.


Tagged categories: Concrete defects; Concrete masonry units (CMU); Dunn-Edwards; Efflorescence; Masonry; Masonry coatings; Stucco; Tilt-up concrete

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