You might need to repeat this several times.
Repair cracks in concrete before flooring.
Works on all residential and industrial type concrete floors.
Push the mortar so it is even with the concrete surface.
This will help the epoxy coating to properly cure and not bubble or peel with time.
Before applying any epoxy floor coating it s important to properly assess the concrete and repair any damage including sealing cracks.
On narrow cracks apply a bead of caulk on the side of the concrete crack at least 1 8 from the edge of the crack.
With a wire brush clean the crack.
Very small cracks such as hairline cracks can be repaired using a vinyl concrete patching compound applied over the crack and then smoothed with a putty knife or trowel.
If grease oil or dirt remains in or near the crack clean it thoroughly.
Yes you should fix concrete and make level it before installation laminate flooring.
In general using a trowel is the best and most accurate way to apply patching compound.
Verify before proceeding that the crack is manageable and can be fixed using the crack kit.
Repairing the concrete for small narrow cracks that do not show signs of moisture use concrete filler which can be purchased in a tube in vinyl epoxy or latex to fill the crack.
Work around the whole border of the crack.
Sweep away any loose debris then vacuum the crack.
Best regards john zyad from blackstone flooring in bradford 4 10 2019 at 12 53 46 pm typically not really but if it s a big damage then you in.
Once the crack is prepped the repair work can begin.
Alternatively many products come in bottles with an applicator tip.
This creates an area that can be used to put the epoxy minimizing the waste.
Use the pointed end or a masonry pointing tool to force the patching compound into the crack.
Any type of flooring may be used over properly repaired shrinkage cracks if the entire concrete surface of the pad is leveled and sealed.
Assessing the concrete cracks first begin by identifying the type and cause of the cracks.
How to repair cracks in concrete floors permanently in as little as 15 minutes.
Use a smaller trowel or paint scraper and scrape along the edges of the crack or hole where the concrete meets the mortar.
Narrow concrete cracks can be filled using masonry crack elastomeric filler that can be applied with a caulking gun.