Repair Cracks In Concrete Before Flooring

Narrow concrete cracks can be filled using masonry crack elastomeric filler that can be applied with a caulking gun.

Repair cracks in concrete before flooring.

Any type of flooring may be used over properly repaired shrinkage cracks if the entire concrete surface of the pad is leveled and sealed. Push the mortar so it is even with the concrete surface. Once the crack is prepped the repair work can begin. Alternatively many products come in bottles with an applicator tip.

If grease oil or dirt remains in or near the crack clean it thoroughly. You might need to repeat this several times. This creates an area that can be used to put the epoxy minimizing the waste. 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.

This will help the epoxy coating to properly cure and not bubble or peel with time. Use the pointed end or a masonry pointing tool to force the patching compound into the crack. Works on all residential and industrial type concrete floors. Sweep away any loose debris then vacuum the crack.

The vertical displacement associated with settlement cracks. With a cold chisel and large hammer undercut the edges of the crack. Assessing the concrete cracks first begin by identifying the type and cause of the cracks. 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.

Use a smaller trowel or paint scraper and scrape along the edges of the crack or hole where the concrete meets the mortar. With a wire brush clean the crack. Before applying any epoxy floor coating it s important to properly assess the concrete and repair any damage including sealing cracks. Work around the whole border of the crack.

Overfill the crack slightly and scrape the flat edge of the trowel across the surface to flatten it out. 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. Verify before proceeding that the crack is manageable and can be fixed using the crack kit. 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.