Does the mortar eat away the aluminum?

aluminum away EAT mortar
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Does the mortar eat away the aluminum?

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Our products are produced of an “alloyed” aluminum which is engineered and suitable for a direct mortar contact. Etching of the aluminum does occur and is considered a normal reaction upon mortar contact. In some instances, usually if excessive moisture is allowed to penetrate the finished unit through grout transmission, or if the initial mix is to “wet”, this reaction may continue to cause unsightly staining of the aluminum. It is therefore recommended that the mix ratio and water content be carefully observed during installation, and that the tiled top surface of the bench, be sealed with a commercially available grout sealer. Generally, the sealers are recommended for all tile and grouted surfaces, are easily applied and relatively inexpensive to acquire.

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