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ARDEX Products

Primers & Joint Fillers



One-Coat Moisture Control System for Concrete to Receive ARDEX Products
Product Quantity 22 lbs | 1.65 gal
Colours Black
Working Time 20 Minutes
Pot Life Apply Immediately
Dry Time 4-20 Hours FC
SF Or LF 250-270 SF | 170-190 SF
Area Or Depth 10 MILS | 14 MILS
Floor Or Wall Floors
Interior or Exterior Interior
Permeability 0.06
TF Tack Free
RC Recoat
CG Concrete Guard
CD Concrete Dressing
FT Foot Traffic
LT Light Traffic
DT Dry Through
FC Full Cure
HFT Heavy Foot Traffic (Forklift)
VT Vehicular Traffic
FUT Full Traffic
  • 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