Length - 01:37 The biggest drawback of epoxy coatings is that they don't "breathe," so they will trap any moisture vapor coming up from the concrete slab. Before applying an epoxy, Harris recommends having your floor tested first for the moisture-vapor emission rate. If the rate is too high, the epoxy topping can delaminate. To learn more, view Harris's video on testing concrete for moisture vapor. Find a Concrete Contractor 24 Services in 221 Metros -- U.S. and Canada © 1999-2012 ConcreteNetwork.com None of this site may be reproduced without written permission |