Are you wondering if you should save money and stain your concrete by yourself, or spend more and hire a professional concrete expert. Concrete staining is not as simple as staining wood for example and we recommend doing your homework before tackling your concrete floors.
Like many DIY projects, the steps for concrete staining are fairly easy and the list of required tools is simple enough (goggles, sprayer, pressure washer and etc.). The important thing to remember before moving onto staining your concrete floor is to remember that although the stain is permanent, so are the mistakes you'll potentially make.
The process of staining concrete is fairly simple to follow:
1. Clean and prepare the surface
2. Apply the stain
3. Clean up and neutralize the stain
4. Seal the floor
The process sounds simple to follow, but understand the basics from prep to final sealing is what will prevent permanent mistakes from happening.
If you have any doubts, the area is big, requires extensive preparation or you need to incorporate multiple colors and effects, it's best to hire an experience concrete floor installer.
The tools required for staining are fairly simple. The difficulty comes from knowing how to apply the stains correctly using the tools. For example if using acid stains you will require acid-resistant brushes and spray equipment. If you are using mops, rollers and squeegees if not using the right technique, you are risking to leave undesirable roller marks or streaks of color on the floor.
We can't stress this enough, but correct surface prep whether staining new or old concrete is what will make or break the end result. Old concrete floors can require extensive surface prep, depending on exposure to weather, spills, chemicals or the type of wear and tear has received.
You need to remember that unlike paints that can hide any defects in the floors, stains are translucent and any residue that remains on the concrete surface will likely be visible after the staining process.
There are two ways in which the concrete can be prepared. We firmly believe that concrete grinding is the best way, as it removes the dirt, grimes and stains without reacting with the lime in the concrete. Acid washing method is more DIY accessible, but the acid can react with the lime in the concrete, preventing the acid stains from reacting properly and producing the desired color. Read more about concrete grinding vs acid wash.
There are two types of concrete stains on the market - acid stains and water-based stains. Both stains work in a different way and you will need to know which stain is most appropriate for your project. Acid stains for example require machine concrete grinding for surface prep, also different application and clean up, as they react chemically with the concrete to create a permanent bond.
Non-acid based stains produce color by bonding with the concrete surface, producing a colored film or coating.
Like we said stain are permanent and so are mistakes. Once the stain is down and it has penetrated the concrete, there is no going back. It is best to do a sample area on the concrete you are planning to stain to see true representation of the color. Areas that will be stained need to masked, to prevent stains from staining areas that are not meant to be stained. Also you need to be careful when removing tape from areas that have been stained as tape can pull away the color or leave a residue behind, preventing the stain from reacting with the unstained concrete.
Stained floors need to be sealed for protection. The combability of the concrete sealer depends on the type of stain used. For example for acid stains, the stain needs to neutralized before sealing, as the sealer might not be able to create a proper bond with the concrete.