Preparing a concrete floor painting

All the concrete needs to be prepared.

New concrete is too close to the surface and old concrete is too dirty. If you coat over it without checking with a concrete grinder, you will receive partial liability in small areas, but the majority of the land will suffer from peeling.

Peeling is simply a layer of coating material that has never really adhered to the surface and it dries and hardens, it de-laminates away cleanly leaving an air bubbleunderneath. Only polished concrete, which apparently has been sealed rid of this problem.

Preparation consists of opening the surface of the concrete and cleaning it of any impurities, it can be porous and clean, which can in a few different ways, depending on the state to be reached, the concrete, which needs to be painted.

For comparison, polished concrete, with no sealer or paint requires up to fifteen steps to prepareachieve the final finish, but often concrete can be easily prepared in one or two steps before painting.

Driveways & Paving

When concrete has for years been the top polished surface has been weathered away, and possibly all, of course, need a good, clean with a water jet to prepare him. As a test, you should scrub the hands for a few small areas the size of your hand with washing powder detergent, water and a brush, then rinse it and let it dry it. Select aArea exposed to high traffic, an area that is protected, and another area to the side that was never worn. When thoroughly dry the areas we have clean water drips on them, see how porous the concrete is and how easily the water is absorbed, because this is the best indication of how easily absorbed the color.

Suppose wash areas to absorb all the water, you can jet clean the entire area of water and then paint it easy when it is dry, ensure, that the firstCoat is thinned 10%.

Water jet cleaning is fast, simple and carried an excellent way to prepare concrete, because it dirt, algae and dust away from the small pores of the surface. As long as it is right, without residue is again washed into the pores of the concrete ready to immediately coat looks like it dry.

There are two major concerns with the preparation of worn concrete - is a protected area, which is still a strong surface and the secondOil that has soaked into the concrete.

Oil stains

Oil will eventually soak right through concrete over time from the sun supports their resistance and the opening and closing of the concrete low when it heats and cools. The good news is that you can remove it only just below the surface to achieve a good adhesion, and if the paint is dry, the oil is to stop again to the surface where the oil is very wet all through.When the oil is very humid, you have most of it first extracted with a solvent and an absorbent, which can be found in any hardware.

To extract oil from concrete, you must remove the area with a cloth after application wipe turpentine or similar solvent for most of the surface material. Then, the absorbent with a product as in cat baskets are used to absorb waste and wet for more turpentine them. Cover with plastic wrap and leave it overnight to work. The oils aredilution and as solvent evaporates, it will be trapped in the absorbent. Very bad areas need two treatments.

Oil stains, including with the solvent can often with simple washing powder and water to be treated away, but the older patches containing dirt, it is impossible to remove completely. Dampen brush the surface with the detergent, they rub themselves with a broom to integrate a wet and leave it 30 minutes, if possible wetting is something in thisTime if it appears to be drying out. If the stain could be washed or should go largely disappeared, but it is within 12 hours in hot weather back as the oil comes back to the surface again. When this happens, once cleaned, dried, and dry as soon as possible to allow the color to appear before the stain painted. With a wet vacuum, the fields are dry quickly, without the remaining concrete.

Three ways open to the concrete surface

AfterFilling in test areas in different parts of the concrete, if you are there areas where the Polish nor on the concrete where the water does not test the surface, it needs to be opened by two beams, etching or a concrete absorb grinder. These three methods are to remove polish area on the concrete and the opening of the aerated concrete underneath. If this has been achieved your paint will stick strongly toit carries through the end.

Acid etching

Caution is advised when using acid to etch concrete because of potential health problems and the damage it can do to plants, clothing or the surrounding area. In this article, the basic processes are described, but you need the safety instructions that you follow the vendor of the product, or as indicated on the label.

Hydrochloric acid, which is sold mainly for cleaning brick, the lime in the concrete attackand resolve the binding. If it on a concrete floor, driveway or pavement, it is rapidly neutralized or neutralized mainly in contact or when the hissing has stopped, then used it only acts on the surface. In general, a mixture of 10 parts water to one part of the acid strong enough to remove the polish from the surface. If you wear proper protective clothing, gloves and goggles and be careful not to spray, the best way is to take the acid during a long treatment with a paint rollerto cover the deep pile. Therefore, you should avoid generous and slow enough to make a spray.

After applying the acid-water mixture and water before drying thoroughly clean the concrete to explode at 3000 psi in the vicinity of the concrete, washing is not good enough to remove the surface and a rotary jet (like a lawn mower ) is the best way. If the concrete is dry, apply the first coat of paint.

Blasting Machine

It is better to the experts who know the leftto use the power of the machine, what size and shot, how fast should each pass, the surface blast. These machines throwing small steel balls on the concrete inside a closed chamber by the firing by a rapidly rotating impeller. The shot that hits the surface, it breaks open and then recyled be on their feet to the return chamber while a vacuum system separates and removes dust and sand. Shot blasting machine, the surface can open more than planned and have deep grooves, where the raysOverlap, so it is not ideal for home applications.

Concrete grinders

These devices in all shapes and sizes and power wheel configurations come from the small hand angle grinder with dust extraction shroud and diamond grinding wheel for great hand-held machines, several of the wheels. Open for driveways that have only the edges on the surface a set up as an angle grinder concrete grinder is ideal. It will dry and grind the dustCollectors will remove the dust, to work there. For larger areas, more than one edge to stand up or sit down with an angle grinder grinder grinder as a motor source is faster and easier. There is a dust extraction shroud, which is even in the corners and edges have the most features, grinding against walls.

They work with a spinning wheel in contact with the concrete, the diamond segments to have welded the wheel. Because these diamonds come in contact with the concretetake them off and sand the surface. The dust extraction shroud contains all the dust and the dust removed without particulate matter.

Painting floors

Once your surface is clean and open to the first layer are diluted 10% to soak into the surface as deeply as possible into the water. If your preparation is good, it will look like and can be blunt, if it is dried. Depending on the coating, for another layer once the first has completely dried, you giveglossy, uniform surface. Apply a third layer, if a greater thickness is needed for better wear.

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