This surface is called a scratch coat.
Can i paint over a painted concrete floor.
Brush the coating around the perimeter of the floor with a 3 inch wide paintbrush.
In order to successfully paint concrete or other masonry surfaces you must clean and prep the area properly apply an appropriate paint and allow adequate time for the paint to cure.
In a theoretical sense yes you can apply concrete stain over a painted concrete floor or wall.
Use patching compound to fill any holes scratches or gouges in the concrete surface.
A scratch coat will give the mortar something to hold on to instead of the layer of paint over concrete.
An easy way to tell whether the floor is dry enough is to place a small.
Repainting concrete surfaces is a bit more demanding than painting freshly laid concrete.
Use a durable oil based epoxy paint that has been formulated to withstand the abuse of.
Wait until your concrete floors are dry before you prime.
As such a stain over paint procedure is not recommended for most concrete structures.
First a surface more textured and solid must be applied over the painted concrete.
Painting concrete is a simple and inexpensive task that can be completed by most homeowners.
Spread the paint evenly brushing over any thick patches until the paint is smooth and thinned out.
If oil based now then can generally use oil mineral spirits or acrylix latex or latex or latex enamel over it if latex or acrylic only latex or acrylic latex and some enamels thogh some enamels can only go over oil or enamel paints successfully because some have oil or mineral spirits paint thinner based solvents.
Even though it s rough texture makes it a piece of cake to get fresh paint to adhere to untouched concrete every so often your concrete need to be touched up with a fresh coat of new paint which is a bit more challenging.
Clean the concrete thoroughly with trisodium phosphate tsp and warm water then let dry.
With a bit more preparation though you can cover even a painted floor successfully giving you the hard level surface you need for any floor covering you may choose.
However that stain will not take hold of the painted surface at all leading to a suboptimal coating that may not protect the painted surface beneath.
Moisture will prevent the primer and paint from adhering properly.