Peeling paint is not only unsightly but it can trap moisture against the concrete of the porch which can cause the concrete to erode over.
Strip old paint concrete floor.
Test the floor for moisture by taping a 2 foot by 2 foot piece of plastic to the.
Using either hand sanitizer or a soap cleaning solution made from 2 tablespoons dishwashing detergent and 1 gallon warm water scrub with a wire or heavy duty brush to lift up the paint.
Remove paint stripper residue.
In this video i use an angle grinder with a diamond wheel and dust collection to remove old floor paint from a concrete porch.
React quickly while the paint is still wet using an old rag to mop up as much of the spilled paint as possible taking care not to spread paint.
Rust oleum paint stripper for concrete must be applied to a surface at full strength and remain on the surface for 30 minutes or more.
Method 2 to remove paint from concrete with soda blasting.
Oftentimes you can rent a blasting unit from a local hardware store.
Paint stains on concrete completely disappear using this method leaving you with a clean surface for repainting if necessary soda blasting is also an environmentally friendly way to remove paint from concrete and causes no damage to the underlying concrete.
A painted concrete floor can be easily repainted without having to strip the old paint away if you use the same type of paint oil based or water based or use a primer.
While high powered blasting may sound intimidating this method is far more environmentally friendly than using chemical laden paint strippers.
If you plan to repaint simply scrape away any peeling or flaking paint sand lightly vacuum well to remove debris and you are ready to paint the surface again.
We do not recommend paint stripper be used on vertical surfaces.
For this stage of the job so long as you re working on a compact concrete patch you can probably get by with a wire scrub brush or a paint scraper.
If you are looking to remove a large amount of paint from concrete then a pot blaster may be your best option.
Rust oleum product support 6.
Concrete patch can be used in place of mortar.
How to remove old peeling paint from a concrete porch.