Solve moisture vapor transmission issues before they destroy your coating. Essential products for problematic slabs.
Moisture vapor transmission (MVT) is the #1 cause of coating failure on concrete. Even slabs that appear dry can have moisture levels that will cause delamination, blistering, and complete coating failure. Always test before coating.
Concrete is porous. Water vapor naturally moves from areas of high humidity (the ground) to low humidity (the air above the slab). When you apply a coating, you create a barrier that can trap this moisture, leading to pressure buildup and eventual coating failure.
Older slabs often lack proper vapor barriers, or barriers have been punctured during construction
Properties in low-lying areas or near water sources may have hydrostatic pressure pushing water up
Freshly poured concrete can take months to properly cure and release moisture
Water pooling against foundation walls or improper grading directs water toward the slab
Always test concrete for moisture before applying any coating system:
Measures moisture vapor emission rate (MVER) over 60-72 hours. Industry standard for determining coating compatibility.
Threshold: Most coatings require < 3 lbs/1000 sq ft/24 hrs
Measures RH at 40% slab depth using in-situ probes. More accurate for thick slabs and provides internal moisture data.
Threshold: Most coatings require < 75% RH
100% solids epoxy primer that blocks moisture vapor transmission up to 15 lbs MVER. Can be topcoated with any coating system.
Advanced moisture vapor barrier system for the most severe conditions. Handles extremely high MVER and RH levels.
Shop our moisture mitigation products