AC-MB Epoxy is a 2A:1B Mix ratio Moisture BLOCK system. It is a clear, two component, 100% solids epoxy hybrid for on or below grade concrete slabs. It has been specially designed for slower cure and maximum moisture vapor protection while reducing the risk of outgassing & “fish eyes” typically associated with porous & contaminated concrete. The AC- MB Epoxy primer system can be used under all AC-Chem’s seamless flooring materials.
BENEFITS
It is recommended that the owner of the facility or a certified AC-Chem applicator test the slab(s) with unknown history for contaminants (e.g. hydrocarbons, other organic compounds, water soluble ions, ASR, sulfurous compounds, etc.) to determine suitability for AC-Chem Products, strongly recommends “Anhydrous Calcium Chloride” per ASTM F 1869-11to determine the MVER (moisture vapor emission rate) in lbs/24hrs•\1000 sq. ft or “In-Situ” per ASTM F 2170-11 to determine the internal relative humidity for slabs to be treated. Low permeability flooring finishes like seamless polymer coatings require MVER to be below 3lbs/24hrs/1,000s.f. or 75% internal relative humidity (RH). Internal RH is the test method preferred by most floor covering and coating manufacturers. MVER fluctuates within slab areas, and can have significant seasonal variations. The testing must be carried out before application of the AC-MB Epoxy to obtain the manufacturer’s warranty. Contact AC-Chem for additional details and guidelines concerning pre-installation concrete testing.