Originally Posted by Hookalatch
My garage concrete has a white powder come up thru the concrete during wet weather even though the floor stays dry. The driveways, patios, shop and barn are all about the same level as the garage and have never produced the powder. Can this garage floor be epoxied and what about the powder in subsequent years?
get an expert on this issue
my guess is that IF the epoxy is a 100% moisture proof seal your effluoresence is a non-issue.