Before After
Using a gel acid for etching concrete on a concrete garage floor is an effective surface prep solution. For years contractors and do it yourselfers have been using liquid acid solutions to profile a floor before applying coatings.
The problem with liquid acids is that they are not only dangerous but are ineffective because they over etch the low spots in a floor and under etch the high spots.
A gel acid is rolled on the floor with a 3/8" - 1/2" nap roller and the gel stays where it is applied, it does not flow to low spots.
Gel acids are also excellent for removing rust stains from concrete like in the photo above at the Harborview Marina and Yacht Club in Baltimore Maryland.
Your can find complete information about the gelled acids and their uses by visiting www.etchingconcrete.com
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