ETCHING FLUID is a water based concrete surface retarder which when applied to formwork, prevents concrete poured against it from setting to a depth of 5-10mm, for up to 48 hours. This allows the retarded concrete to be removed by hose after the forms have been stripped, resulting in an exposed aggregate finish.
USES
- ETCHING FLUID is used to create a mechanical key on a concrete surface which is to have more concrete poured against it. An example of this is where ETCHING FLUID is painted on stop ends which confine individual pours of a floor slab. W hen the stop ends are removed and the retarded concrete is washed off, the resultant exposed aggregate finish makes an excellent key for the next pour.
- ETCHING FLUID can also be used to create an architectural exposed aggregate finish on columns, beam panels, pavers and any other formed concrete surface.
