Moisture testing is a critical first step because concrete is naturally porous, acting like a wick that draws moisture up from the ground. If this moisture is trapped under an impermeable coating without being properly addressed, it creates pressure that can cause the epoxy to blister, peel, and delaminate, leading to a total floor failure.
We prioritize testing to prevent these issues and ensure a durable bond. Our process includes:
- Identifying Hidden Risks: Even if a slab appears dry, moisture can be trapped deep within the concrete. This hidden humidity can later migrate to the surface and break the epoxy bond.
- ASTM Standard Testing: We use ASTM F2170 (in-situ relative humidity probes) and ASTM F1869 (calcium chloride testing) to quantify exactly how much moisture vapor is escaping the slab. These professional measurements tell us if the concrete is ready for a 100% solid epoxy coating or if additional mitigation is required.
- Preventing Mold and Efflorescence: Proper testing and subsequent mitigation help prevent the growth of mold beneath the floor and the formation of efflorescence—white, powdery salt deposits that can compromise the installation.
By verifying that moisture vapor emission rates are within acceptable limits before we begin, we ensure your floor achieves the flawless finishes your business deserves. If you are concerned about moisture in your slab, we invite you to Request An Estimate so our team can design the right decorative concrete surface for your space.
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