How do you prepare a concrete floor for epoxy coating?

To finish preparing an uncoated concrete floor, you need to etch, acid wash or grind the floor, as a smooth floor will not allow the epoxy to adhere well. You can rent a sand blaster or diamond grinder and rough up the surface. Or you can etch, or acid wash, the floor using a product designed for concrete floor prep.

How do I clean a concrete floor before epoxy?

Fill a 5-gallon bucket with degreaser or all-purpose cleaner and water according to the instructions on the bottle. Scrub any grease or oil stains on the cement floor with a stiff-bristled brush dipped into the cleaning solution. Blot the cleaned areas with cotton rags.

How clean should concrete be before epoxy?

The absolute first step before applying your epoxy coating, is to prep your floor. It is essential that you clean your floor thoroughly. If you’re working on a concrete base, fill in any cracks or patch areas that need care before you start to clean. Once the damages, if any, have been repaired, it’s time to clean.

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Do I need to prime concrete before epoxy?

One of the most common questions I get with epoxy floors is if it is necessary to prime the floor before applying the epoxy floor coat. The right primer will guarantee better adhesion of your floor coats to the substrate. It will give your floor a longer life and will reduce the risk of the coat chipping or breaking.

What happens if you don’t etch concrete before epoxy?

New concrete must be etched before applying the epoxy. The smooth surface of unaltered concrete won’t bind with other materials, such as epoxy or paint. As a result, epoxy will peel and lift away, failing to adhere to the surface.

Can I put epoxy over sealed concrete?

Do not attempt to apply epoxy over existing concrete sealers. These need to be removed first as epoxy will not adhere to them. Also, floor paint is not a good base for epoxy and needs to be removed as well.

What do I clean concrete with before painting?

Clean the concrete surface with soap and warm water, removing any old paint. First, sweep away any surface leaves, debris, and dirt. Then remove any existing paint or gunk using a power washer or scraper and wire brush. Scrub away any dirt, grime, or gunk that is stuck to the concrete.

What is the best epoxy primer for concrete?

Seal-Krete Lock-Down Concrete Bonding Primer is a self cross-linking epoxy primer for concrete surfaces which provides superior topcoat adhesion and durability. Nanotechnology locks topcoats into the surface to reduce peeling and hot tire pickup, while the acrylic formula allows for use over previously coated surfaces.

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What is the purpose of epoxy primer?

An epoxy primer is very effective at sealing up bare metal and prevents moisture or corrosion from creeping in. It keeps out oxygen, ensuring that rust or corrosion do not form on the surface. It is non-porous when it cures and does not soak up moisture like most primer sealers.

Does garage epoxy need primer?

Epoxy adheres to concrete by forming a mechanical bond within the pores of the surface. The primer also produces a thinner epoxy film or tie coat that the much thicker base coat can chemically fuse with. This process produces a much stronger bond of the base coat and is why most contractors always use a primer.

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