Frequently Asked Questions (FAQ)

125 to 135 sq. ft. (11.6 to 12.5 m²)

60 to 70 sq. ft. (5.57 to 6.50 m²)

ASTM G21 is an industry standard that uses an intensive testing protocol for determining if fungi, including mold and mildew, can grow on a polymeric material. MAPEI uses a third-party lab and the ASTM G21 standard for testing the antifungal effectiveness of MAPEI products containing polymer that incorporate BioBlock technology. The ASTM G21 test uses a mix of mold and mildew spores commonly found in household environments. Product samples are placed on nutrient-containing plates and sprayed with a mixture of these fungi. For 28 days, the test plates are kept at a constant temperature of 84.2°F (29°C) and exposed to high humidity, which are excellent conditions for fungal growth. The samples are then examined for fungal growth. If no growth is present, the product is considered to not support mold/mildew/fungal growth.

MAPEI’s landscape turf products were designed exclusively for the installer for easier, more budget-friendly applications. MAPEI’s sports turf products are designed to create the strongest and best-performing installations in the industry and are engineered to provide world-class performance.

1/16" to 3/4" (1.5 to 19 mm)

There can be different explanations of why this happened. The grout may have been washed too soon or too much during the cleaning process, causing pigment to be removed from the grout. Or, the grout powder may not have been dry-blended before mixing in order to avoid color variation.

This indicates that too much water may have been used either in the mix or the cleaning process.