Unfortunately it sounds as if the bleach has eroded the vinyl s wear layer to the point where it s begun to flake off.
Is bleach safe on vinyl flooring.
General guidelines for cleaning vinyl floors you should avoid cleaning vinyl floors with ammonia or bleach.
For mopping floors ceramic tile vinyl linoleum not marble or other porous surfaces that aren t safe for bleach mix up a solution of cup bleach added to 1 gallon of water or cup if you are using new concentrated clorox regular bleach 2.
Here s some good news.
It s important to note that you don t want to clean your luxury vinyl flooring with bleach ammonia or any high ph detergents.
These cleaners are corrosive and can damage your floors.
Instead you need to look for ph neutral cleaners.
Let s pull the bandage off and start with the bad news.
For disinfecting wipe or wash the floor then apply the bleach solution and let stand for 5 minutes.
Vinyl fabrics even colored ones can generally be safely treated with a clorox regular bleach2 and water solution so you have a pretty good chance of success.
This kind of damage is irreparable and there are no coatings or sealers that will solve your problem.
There s good news and there s bad news.
High ph detergents are corrosive and can damage the flooring.