I use a very user friendly diy concrete crack repair kit that will fill and seal up any cracks in the concrete floor.
Repair cracks in basement floor and paint.
The basement floor doesn t support the weight of the home so cracks in the floor won t affect the home s structural integrity.
That is an essential step which you must complete before proceeding to paint your concrete basement floor.
You can also use a dehumidifier to remove any dampness in.
Don t paint your basement floor if room temperature exceeds 90 degrees f 32 2 degrees c or is 40 degrees f 4 44 degrees c or colder.
Check your basement floor for dampness.
Hairline cracks need no repair and are not indicative of a larger problem.
Step 1 repair cracks asap.
If your basement floor has any cracks they will have to be repaired before you can use a basement floor paint.
I have a video in the link below that ll show you how to repair a crack using the repair kit if you have any cracks.
The crack repair materials used can vary depending upon the width and depth of the cracks as well as floor temperature surface condition and porosity of the concrete slab.
Because basement floors are poured after the walls are poured the concrete where they meet doesn t always bond completely and this is a common spot for a crack to appear when the house settles.
The good news is most basement floor cracks are normal and don t need to be repaired.
Diy basement floor slab crack repair kit repairs approximately 80 to 200 ft repair concrete cracks in driveways patios sidewalks and basements 165 00 1.
The hardening action involves a chemical reaction rather than evaporation and the resulting surface is extremely durable and chemical resistant finish.
The best material for painting a basement floor is a two part epoxy paint which consists of an epoxy resin and a hardener that are mixed together.
However some cracks in the basement floor can let water moisture and dangerous soil gasses into your home.
Repair cracks or other imperfections in the floor using a concrete patch kit and trowel.
Even if you don t see signs of moisture in the cracks it s still important to repair them.
The materials could be quick set 2 part epoxy crack fillers designed to be coated over immediately or fast setting polyureas.
Kits are available at home improvement stores.
Make sure that there are no puddles of water or damp spots in your basement.