How To Repair Stained Concrete Floors

Question:

I recently patched some minor cracks in a concrete floor and now I desire to stain the unabridged floor. Will the repaired areas absorb the stain similar the residuum of the floor? I desire the color to exist compatible.

Answer:

Any fourth dimension you stain a floor with repaired or patched areas, expect a color departure. The base color and character of the concrete has a lot of influence on the final color and look that is accomplished when you use translucent stains or dyes. Since a concrete patching material volition accept a different porosity and profile than the existing concrete, it can be expected that the repaired areas will stain differently. Sometimes the differences volition exist subtle, and sometimes they can be extreme. Always do a test to decide the actual color deviation that might occur. If the color difference is unacceptable, consider applying a concrete overlay or microtopping over the entire slab to achieve a new, uniform surface on which to apply your stain.

Question:

I saw your Concrete Network articles and those of others nigh acid-stained concrete floors. Simply I did non run across any articles on retouching stained concrete floors. The reason I'1000 contacting you is that I have a 2x2-foot pigsty in the eye of my beautiful stained and scored concrete living room flooring caused by jack hammering to repair a water leak under the foundation. Any suggestions you could give me regarding how to go about repairing and restoring the floor to its original condition, and on a $2,270 budget, would be appreciated.

Can the pigsty be filled in with physical and balderdash floated evenly, so rescored with a new diamond blade at the appropriate depth? Can the 2x2-foot bull-floated area be retouched to friction match the original chocolate-brown-reddish stain colour, and if so, can you recommend what acid stains to utilise? Or will nosotros have to use an overlay on the entire living room floor to become a reasonable lucifer?

Answer:

Site Chris Sullivan

A water leak under this house required jack hammering through the stained concrete living room flooring

This is one of the more interesting issues I accept come beyond in 10 years. What a tough break and situation. Trying to patch a stained floor is truly ane of the hardest rehab jobs out at that place. You need to match the texture and finish of the concrete, and so lucifer the color and tone of the stain. Any patch material - concrete or polymer - will stain differently, so it volition be virtually impossible to go a adept texture and color friction match with any blazon of patch. These are the options I advise:

Cut the hole to the closest sawcut lines to create a corking and uniform opening. This way you will exist working within a designated space and won't take to worry about blending outside the lines. Make full the hole with concrete, and so come back with a white or low-cal-colored microtopping skim coat to lucifer the contour and texture of the residuum of the floor. Get a professional to piece of work with the stains to match the original color.
Fill the hole with concrete, then grind down the entire floor and cover information technology with a microtopping (meet Decorative Concrete Overlays). Next, restain and seal the entire floor.
Since money is an issue, effort your all-time with a patch and use a throw rug to cover the surface area. Not the best solution, but I have seen it done successfully. Or you could even create a "faux" throw carpeting by stenciling a pattern over the patch and turning information technology from an eyesore into a decorative focal indicate. (See Stenciling Concrete Interior Floors.)

Then, basically the options are to try and match a patched pigsty to the rest of the floor or redo the unabridged floor. I am not sure either remedy will work within your budget. The patch method likewise runs the hazard of creating a spot on the floor that looks so different, it attracts attention and becomes a bigger eyesore.

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