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What Is Elastomeric Paint and How Is It Used For Coating

The external appearance of a house is as important as the things inside it. Outsiders and passers-by will judge the persons living inside a house based on what they see. The paint on your home’s exterior can therefore make or break how your residence looks, and more importantly, how people perceive you the owner of the home.

Elastomeric paint
by Laertes under CC BY  with wpseopix.com
Elastomeric paint

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As much as we want to keep the exterior paint of our homes as polished and flawless as possible, it is the part of house that is most exposed to the harshest elements. They expand and contract with the burning heat of the sun and the freezing cold. As a result, cracks appear on the surface of the external coating. Moisture and other harmful substances also tend to corrode the paint and even undermine the integrity of a structure.

Elastomeric Paints Have Been Used For Years

The use of elastomeric paint can provide the solution to all these problems concerning home exteriors. This paint was developed in Europe way back in the 1940s, and was introduced to the United States only in the mid-1980s. This type of paint is currently the choice among owners of residential and commercial properties because of its superior benefits. It is especially designed to be applied on exterior surfaces such as concrete blocks, tilt-up, stucco, brick and exterior insulation finishing systems.

What exactly separates an elastomeric exterior paint from other ordinary paints? It is the presence of elastic large molecules in the substance called elastomers. These large molecules, usually made of carbon, hydrogen, oxygen and silicon, give the paint a thick and high fill property which is responsible for most of its great uses and advantages.

Benefits Of Elastomeric Paints

Among these benefits is its unmatched durability. Elastomeric paint produces a long-lasting, strong film on any surface which makes it resistant to extreme cold and harsh sunlight, natural elements that usually cause damage to wall coatings. The acrylic binder found in this polymer coating also makes it water-proof, so you don’t have to worry about your exterior coating being washed off by heavy, wind-driven rain. An elastomeric roof paint is also considered to be the best coating you can use for your home’s roof because it is constantly exposed to these harmful substances.

Because of its thickness, elastomeric paints also do not require multiple coats when applied to surfaces. Two coats of elastomeric paint over an excellent primer will be enough to ensure that water will not penetrate existing cracks on your wall or roof. It can even be used to repair these cracks because of the elastomeric paint’s flexibility and good elongation characteristic. If used properly, an elastomeric acrylic paint can coat an exterior surface for more than ten years, much longer than a 100-percent acrylic paint.

Another advantage of using elastomeric paint is that it works well with almost any kind of exterior surface and applications. An elastomeric stucco paint, for example, can even bridge and repair non-structural hairline cracks due to its tremendous elongation capabilities. There are also elastomeric paints for concrete, wood, masonry and even T-111 panel sidings. Certainly, only a high performing paint can exhibit this kind of versatility and durability on all kinds of surfaces.


Is Elastomeric Paint Expensive

Having familiarized yourself with the pluses of using elastomeric paint for your home, the next question in your mind will most probably be, “How much will this cost me?” Well, truth be told, the elastomeric paints cost is a little higher compared to other ordinary types of paints. This is because it has lower coverage per square foot or meter compared to other products. However, as you very well know by now, every penny you will shell out for a gallon of elastomeric paint will be all worth it, because of the excellent quality and benefits this product can offer.

Before buying an elastomeric paint, you also need to be aware of its limitations. Since it has a composition specially tailored for external surfaces, this type of paint does not work well and does not have much use inside the house. Another downside of the elastomeric paint is that it is eclipsed in quality by average paints when applied on surfaces with smooth finish. Also, elastomeric coatings do not work well with non-elastomeric paints, so do not try applying the latter on top of the former.

Painting With Elastomeric Paint

Once you have acquired the right amount of elastomeric paint you need for you home, it is important that you apply it properly on your home exterior’s surface to avoid possible wastage. In applying this kind of paint, you can use a roller, a brush or an airless paint sprayer. If you opt to use a sprayer, you will need a powerful one with a spray pump, to be able to uniformly spread the paint on the surface. You can also occasionally use water to thin the paint, if at all necessary, since elastomeric paints are water-based. For better results, you can also use acrylic binders together with the elastomeric paint.

There are a lot of commercial brands of elastomeric paint available in the market today which you can choose from. One of the more popular brands is Sherwin Williams elastomeric paint. Two of its varieties, the ConFlex XL High Building Coating and the Sherlastic Elastomeric Coating, are known for their waterproofing capabilities. Both are ideal for masonry and concrete construction, and are available in a wide range of different colors. Another popular brand is the Behr elastomeric paint. Relatively new to the American market, this brand offers premium elastomeric coating for masonry and stucco surfaces. This can be applied directly on the material to heal small cracks and to provide a sleek, waterproof finish. The brands are readily available in local paint stores, so good elastomeric paints are literally within your reach.

For exterior coating for your house that is built to last and offers a myriad of benefits, elastomeric paint should be every home owner’s choice. It provides the superior quality and unmatched care for any surface, making it an investment your house truly deserves.

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