I have a painted concrete floor out on a indoor porch. I would like to know if any one has very stained over a painted floor. I was thinking of painting it off white or something like that then putting a reddish brown stain over that then sealing it. have any one every tried this or will I be the first to adventure down this road
is it paint or waterbase stain on the concrete right now? paint will not hold up long as a floor coating and should not be used. if it is paint, it should be removed. you can stain the concrete with waterbase acrylic concrete sealer or solvent based siliconized acrylic stain. solvent stains tend to be longer lasting and more resistant to chemicals. solvent stains can also be extremly slippery when they are wet. solvent stains can be applied over waterbase stains if you do a light mist coat as your first coat but waterbase stains will not bond over solvent stain in most cases. epoxy floor coatings can be used if the area is not subject to high UV rays which cause epoxies to chalk and dull rapidly.surface prep is extremely important for concrete coatings. if you can not remove the existing coating, you can clean it with a mix of TSP/bleach/water. if you can remove the existing coating to bare concrete, a 10:1 solution of muriatic acid and water will etch the surface for your new coating. always add acid to water, not water to acid. never add acid to dry concrete, the concrete should be surface saturated with water before adding the acid solution. scrub with a nylon deck brush, rinse well, neutralize with amonia/water and rinse again. let the concrete completely dry for at least 24 hours before coating. hope this info helps, unless you are refering to a chemical stain which is a whole new story.
Last edited by mustangmike3789; 07-26-2011 at 08:17 PM.