Here are useful tips learned during more than 40 years of installing epoxy urethane floor seals and coatings on Fortune 500 company concrete floors, as well as in basements, garages, and decks. These tips can help you avoid mistakes that can limit the life of your floor.
There are three broad steps to doing your floor project: planning and preparation, repairing, and applying the coating. This article is the first in a three part series, and deals with planning and preparation.
General guidelines for applying an epoxy coating to your floor:
Do no harm.
Investing in prep produces the best value, (cost divided by years of service).
Let the chemicals and equipment do the work.
What can go wrong, will go wrong, unless you think ahead.
Technique is what separates mortals from Rembrandts.
An once of prevention is worth a pound of cure.
Now let's get started with tips on how to plan your job and prepare your floor.
Plan the job.
Save trips to the store and costly delays by getting everything you need ready before the job starts. One quick step would be to go to a website like www.concrete-floor-coatings.com for a free cost analysis which will list everything you need to do your job, including step by step instructions.
Stick your coating to something that is not going to move
. Remember that a floor that has 3000 lb. or more going over it every day needs much better adhesion than a wall that may get brushed by an elbow occasionally. Stick your coating to something that is not going to move.
The better the tools, the less work you have to do.
Renting power scrubbers, walk-behind vacuums, double-bladed squeegees, and long-handled scrapers are all multipliers that reduce your work and increase your performance. You can try to do without lots of fancy tools, but you might have to ask yourself, will you stop your work earlier than you should because it's just too much work.
Removing loose concrete is as important as removing dirt
. If you walk over concrete with your socks on, you will usually see that they get all dusty. That's because the concrete is constantly deteriorating and breaking away. Your preparation should leave only concrete that is well attached, so aggressive scrubbing is a must.
Different types of dirt require different cleaners
. If one cleaner worked for everything there would only be one cleaner sold. But some dirt and contaminants, like fats and oils, respond to alkaline-type cleaners and some dirt and contaminants, like minerals, rust and concrete respond, to acidic-type cleaners. If alkaline and acidic are mixed they cancel each other out to neutral, so two separate cleanings are needed for your concrete floor, one alkaline cleaning and one acidic, followed by a good scrub rinse to stop the chemical action.
"Shocking" the floor can help free dirt and contaminants.
When you do your laundry you put your shirt in the wash and it is probably at a pH of 6.5 or 7. Then you add your detergent, which may bring the pH up to 8 or 8.5. That pH change is part of what make the dirt particles want to let go of the fabric. When we do floors, we shock the floor by bringing the pH up to 12 and then hitting it with the acidic cleaner dropping the pH to 5.5 or so. That really helps make concrete particles that are about to let to, let go.
Some things must be abraded off.
Gum, adhesive, asphalt, some paints, concrete splatters, silicone sprays from Rain X, and Tire Shine are just some of the blemishes that you may need to scrape or grind off by hand when preparing a floor.
Don't blow bubbles through your finish
. Gases often come up through your porous concrete floor. Methane and radon gas are very common under concrete slabs and move their way through the concrete causing some bubbles in the finish. But most often bubbles are caused by the chemical reaction still going on between your cleaners and the floor. One or two good scrub rinses are needed to help avoid generating gas bubbles in your floor.
There is only one way to remove gum
. Modern gum is actually synthetic rubber and is not affected by cleaners or most solvents. Scraping is the most common method of removing gum but a 190-degree hot water jet works fast if you have one.
Asphalt bleeds
. If you use a solvent-based floor coating and coat over any asphalt spots, the solvents will make the asphalt bleed into your finish spoiling the color. Use a scraper to remove any asphalt. Then follow with some degreaser or mineral spirits.
If you coat over things that move, your floor may move
. Adhesives are often a problem to remove on floors. But if you leave the adhesive, your coating is like an eggshell. A hard exterior with a soft interior will often let the shell crack and peal away.
Vacuum out those holes
. Water settles in floor cracks and holes. If you vacuum them out or blot them with a rag, you will not have the problem of unexpected delays due to finding water still in your floor after the surface has dried.
Gravity is unforgiving
. Once you prep your floor, anything in the air will eventually end up as dirt on your floor. So don't wait too long to do your coatings. Bugs, leaves, dust, and lint can eventually compromise the quality of the job you end up with. Remember, "Life imitates Star Trek." You may begin to notice in the future that virtually every floor in the galaxy seems to have a flow-coated, two-part coating on it. I am seeing fewer and fewer new wood floors, linoleum, or oriental rugs. How about you?
Follow the rules and your job will turn out with the great look you want.
For more information, contact Harvey Chichester at harvey@concrete-floor-coatings.com or phone 1-800-466-8910 or 952-888-1488 (24/7).
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Article added to SearchWarp.com on Friday, August 29, 2008 View other articles written by Harvey Chichester(2,348)
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