Technical guide · OPAL Coatings
Concrete Moisture Testing for Floor Coatings
Moisture is a substrate condition to measure, not guess.
Why moisture matters
Excess moisture or vapour transmission can contribute to adhesion problems, blistering and coating failure.
Use the specified test
Surface meters can help screen a slab, but they do not replace the test method and acceptance criteria required by the coating manufacturer.
When readings are high
Investigate the source and select a manufacturer-approved mitigation system if needed. Do not treat an extra epoxy coat as an automatic moisture barrier.
Plan your project
Browse the available systems and products. Always check the manufacturer’s technical data before selecting an application method.
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