Published on January 29th, 2013 | by Grant Barnard0
How To Prep, Paint, and Finish Your Cement Basement Floor
Refinishing a cement floor adds beauty and keeps the floor clean. There are a few different coatings for floors that will stand up as long as they don’t receive hot tire abuse. This article will tell you the best way to finish any cement floor and achieve the best results.
Paint Any Concrete Floor
How To Prep The Cement Floor
- Scrub with soap and stiff broom. Then use a prep cleaner that removes grease and wax or sealer. Many interior cement floors have been treated before. The floor must be able to absorb water quickly before it is ready to coat.
- If ANY grease or oil still remain then repeat hand brushing with cleaner/soap and boiling water.
- Dry sweep the floor and then rinse clean any loose dirt.
- OR– You can rent a cement grinder or shot blaster but that is a rather expensive option.
- Muratic Acid Prep is dangerous but also provides the best results. However this would never be used indoors.
- Test the moisture content of the cement. This is easier than it sounds. Tape a 4 mil 12×12 piece of plastic to the floor. Make sure the tape is all the way around the edges. If moisture collects between the plastic or keeps the cement wet. Then it has too much moisture. The temperature greatly affects the time of this test so wait at least 12 hours and use your best judgement. Any amount of moisture is too much.
- Keep a wet edge is an important in a floor coating because overlap is usually very visible when you cut in and let it dry.
- Use a high quality shed free roller. Woven rollers are a no-no for this as you will need a smoother finish.
Products That Work
- Breakthrough is a new product carried by PPG Porter Paints that is great for finishing any cement floor that will not receive hot tire abuse.
- Just about any type of epoxy will do except for the water cleanup ones. If water can clean it out of a brush, then water can also destroy it over time.
How To Spread Paint Chips Over Epoxy Floor Coatings
This is one of those things that is ALWAYS done wrong on every garage floor I have ever seen. There is a trick to make it perfect. Use golf shoes with metal spikes and walk on the wet floor. Break up the large flakes prior to spreading. Then spread by tossing the flakes straight up so they have plenty of fall time to spread out. If the floor is cool enough to not dry quickly the tiny pinholes will fill back in after you are long gone.