Sunday, March 8, 2009

Color Choices for your Polished Concrete

By Mercie Hallow

There are many possibilities one is faced with through the method of concrete polishing. It is absolutely possible for a concrete to be colored and achieve a unique design that could be admired by everyone. Coloring the concrete is possible through the use of concrete staining. Concrete staining are tints and dyes that are used to color and add depth to a concrete surface. Some stains come in liquid forms that are both easy and economical to use.

The most common type of concrete staining is the use of colorants which are combined with the concrete mix prior to hardening. These colorants are bonded with the concrete aggregates thus resulting in a colored appearance. Such colorants are found to be Iron Oxides which are commonly used during past and present concrete coloring applications. Iron pigment Oxides are first used during prehistoric times in art caves.

One of the most common types of staining is acid staining. Acid staining is not a colorant but the process of combining acid, water and salts to a newly prepared concrete floor. The chemical composition in the acid mixture combines with concrete thus developing a color very near to earth tones. Since acid staining is a chemical reaction, there are different color representations depending on the concrete slab composition.

Before the application of acid staining on the concrete surface there are several steps to do to prepare the concrete. First is that the concrete needs to be thoroughly clean and void of loose aggregates. Loose aggregates do not accept staining. Previously acid stained concrete is also grounded to remove previously stained surface.

Unlike acid staining which is merely a chemical reaction, water based stains are tints and dyes that are directly applied onto a concrete surface. These types are most advisable when creating with a specific design on the concrete surface. Water based stains range from translucent to opaque color applications. - 15790

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