Things You Should Know About Concrete Staining 

There are two main categories of concrete stains: the nonreactive and reactive concrete stain. Reactive concrete stains are primarily water-based acidic solutions, which contain metallic salts that actually react with the lime content of the concrete. The moment the chemical reaction happens, the stain will then form a permanent bond with the surface of the concrete and will not peel away or chip off.

On the other hand, non-reactive concrete stains are composed of water-based acrylic concrete stains, which do not rely on a reaction in order to impart color. Instead, these are formulated in order to penetrate the surface of the concrete as well as deposit the pigment particles right in the open pores. Furthermore, non-reactive concrete stains have already grown in popularity for the past few years since they come in a broader color palette compared to acid stains and they are much easier to apply. However, the downside of this type of concrete stain is that they will not produce exactly the same translucent, variegated color tones of acid stains. Also, the color effects are more uniform and opaque. 

Regardless of the color of the concrete stain that you will choose, you should be fully aware of these things: 

  • With acid-based concrete stains, much wider color variations are very normal. Surfaces will also have a variegated, mottled appearance, and these certain types of variations will also be emphasized the moment the final sealer coat is being applied. 
  • With some colors of acid stain, what you can see in the liquid form might not be the exact appearance that you get the moment the concrete stain has already chemically reacted with the surface of your concrete. Furthermore, the concrete stain might not reveal its true color or appearance until it’s been allowed to stay on the surface of the concrete for many hours or even longer. Make sure that you must always apply the concrete stain to a small sample or test area prior to staining the whole surface of the concrete. 
  • The effects of color will also be more intense on newly poured concrete compared to weathered or older concrete. 

 

Reasons to Use Concrete Staining 

This actually boils down to one exact word – character. As a matter of fact, concrete stain does more compared to simply adding color. Instead of producing an opaque or solid effect such as colored or paint coating, chances are stains permeate the surface of the concrete in order to infuse it with deep, translucent, and rich tones. This is the reason why it’s very important that you always remember that even when a certain surface of a concrete is treated with the same product for staining in the same shade. 

Factors That Can Affect the Concrete Stain’s Results 

  • Cement amount and properties 
  • Type of aggregates used 
  • Type of Admixtures used 
  • Methods of concrete finishing 
  • Moisture content and concrete age when concrete stain is applied 
  • Efflorescence 
  • Weather conditions the moment concrete stain is applied 

These things are very important as it can make or break the result of your concrete stain, which is why it’s highly recommended by experts that you only hire a professional and skilled concrete contractor in order to make sure that the job will be done right the first time around.

Read More