ARDEX Products

The ARDEX MC RAPID Moisture Control System is a one-coat, 100% solids epoxy moisture management system formulated to suppress excessive moisture vapor emissions in new or existing concrete prior to installing an ARDEX underlayment with flooring or an ARDEX topping with sealer. It is especially suited to treat areas of new concrete in critical installations, such as health care and institutional applications where the construction schedule does not allow adequate drying of the concrete. ARDEX MC RAPID is also recommended over existing concrete where the level of moisture emissions from the slab exceeds the maximum allowed by the manufacturer of the finished floor covering or sealer. Designed specifically for fast-track installations, ARDEX MC RAPID can receive an ARDEX underlayment or topping in as little as 4 hours

One-coat epoxy resin system

For RH readings up to 100%

Excellent coverage

Fast setting

Proceed in as little as 4 hours

No sand broadcast required for underlayment applications of 1/4” (6 mm) or less

Reduces moisture vapor emissions to acceptable levels for floor coverings

Solvent free, alkali resistant

ASTM E96 - 0.06 perms

Tenacious bond to substrate

Use under all standard commercial and residential floor coverings on interior substrates only

Use under all ARDEX interior toppings (sand broadcast method only)

All moving joints and moving cracks must be honored up through the ARDEX MC RAPID, the ARDEX underlayment and floor covering by installing a fully flexible sealing compound designed specifically for this use

Recommended Tools: Epoxy mixing paddle, low speed drill, short-nap paint roller or notched squeegee (smoother surfaces), long-nap paint roller (more uneven surfaces) and a paintbrush

Please note that the adhesives used for the installation of the floor covering must be suitable for use over non-porous substrates, such as epoxy coating systems. Please also note that care should be taken to ensure that there is no absorption of liquids, including water or other solvents, from the adhesive into the ARDEX MC RAPID coated concrete

Use a short-nap paint roller or notched squeegee with back-rolling for smoother surfaces and a longer nap roller for more uneven substrates. To minimize the potential for pinhole formation, work the ARDEX MC RAPID into the surface with the roller to ensure maximum penetration. ARDEX MC RAPID can also be worked into the surface with a paintbrush for hard to reach areas, edges and corners. Coat the area completely prior to proceeding. While the ARDEX MC RAPID is still in a fresh state (maximum 20 minutes), broadcast an excess of fine sand (less than 1/50’’ in grain size or 98.5% passing sieve size #30 or #35) consistently over the entire area. Do not stand or walk on the freshly applied epoxy when broadcasting the sand