How Moisture Affects Floor Coatings

Moisture rising through a slab is the leading cause of coating failure on below-grade and poorly protected floors. Test first, mitigate second, coat third.

Key points

  • Vapor drive from the substrate
  • Below-grade slabs are common culprits
  • Moisture-mitigating primers solve most cases

Frequently asked

Do you always test moisture?

When the situation warrants — basements, unknown history, or a previous coating failure.

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