Absolutely. Doing so will ensure the stain will last and remain on your substrate. If the stain is not sealed it may be tracked throughout the commercial/residential space, wash and wear away etc. If a natural rustic finish is preferred, use a water based or other matte finish sealer. We recommend Superseal™ 20WB or one of our solvent acrylics with the matte agent added.
Any plastic sprayer will do. Metal is unacceptable due to chemical reaction and corrosion. Sprayer should be dedicated to acid application. Do not use a sprayer that has contained other chemicals I.e. pesticides.
You can, if desired, Cut the stain and apply more than one coat may add to the marbling effect that stains are known and loved for. However, staining at 100% strength cuts labor costs and still creates a coloring effect with highly favorable results. If too much water is added, stain color may not be as brilliant as less acid is reacting with the surface.
Reason: Due to the unpredictability of chemical stains and the multiple variances that can occur, the same acid color can react differently.
Solution: It is beyond the ability of Concrete Coatings, Inc. to predict or guarantee an acid stain’s reaction to concrete or other cementitious substrate. The responsibility rests solely with the applicator to perform a test on a small inconspicuous area of the job to get an idea of how the stain will react and look on your specific job site. Notwithstanding these measures, it is impossible to guarantee color depth and chemical reaction throughout the entire substrate.
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