Keep the area well ventilated.
Can you repair a concrete ceiling.
If the repair is inside a finished space recoat or paint the ceiling where the repair was done.
Remove any loose debris from the crack and surrounding area with a wire brush and broom.
Sand over the top of the repair to blend it into the ceiling.
Then spray on two to three light coats of good bye cracks.
New materials are durable strong expand as they dry and create a permanent repair.
Wear gloves when handling epoxy based repair compound.
New types of materials help repair concrete ceilings.
Narrow cracks can be filled with a masonry crack filler that comes in a cartridge designed to be used in a caulking gun.
Clean up spills immediately.
The soil can set causing the foundation to shift and concrete ceiling crack repair becomes necessary.
Cracks or damage to concrete ceilings indicate a problem.
It forms an elastic film that stretches and contracts along with the crack.
If the damage is greater than 1 3 of the depth steel bars may need to be installed and a full depth restoration may be required.
It works best on hairline cracks but it s worth a try on wider cracks too.
Something in the support structure or in the concrete itself is failing.
Or you can fill the cracks with a vinyl concrete patching compound applied and smoothed with a putty knife.
Ordinary cement won t work because as it dries it shrinks.
The repair compound will have pushed up a little so you ll need a coarse grade sandpaper designed for metal or concrete to smooth the surface for painting or sealing.