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MAPEI: Crack Isolation Membrane

October 12, 2011
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Mapelastic CI is a premixed liquid-rubber crack-isolation membrane for installation under ceramic tile or stone. The quick-drying product can be used in interior and exterior environments on residential or commercial projects.

Mapelastic CI reportedly provides a solution for resolving potential in-plane cracking in concrete substrates up to 1/8 in. (3 mm). “While MAPEI feels that the ultimate form of crack isolation is typified by sheet membranes such as our Mapeguard 2, we have recognized the market interest in roll-applied membranes and have formulated Mapelastic CI to meet those needs,” said Brian Pistulka, business manager for Tile & Stone Installation Systems.

Mapelastic CI was developed to provide some added benefits to this new entry into the roller-applied crack-isolation membrane market. It is relatively quick-drying, allowing tile or stone installations after 30-50 min. The membrane changes color when it is cured, allowing workers to see when they can proceed to the next phase of the installation. The membrane meets ANSI A118.12 requirements, preventing in-plane floor cracks up to 1/8 in. (3 mm) from transmitting through the tile or stone.

For more information, visit www.mapei.com.

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