Any previous coatings should be ground off using a diamond grinder.
Epoxy floor coming off.
If your epoxy is not coming off easily move your scraper back and forth quickly to loosen it up.
Treated or sealed concrete.
Dust or dirt means the floor wasn t clean when the epoxy was applied i saw this once with a warehouse where lots of dust had come in from a giant open door prior to applying the epoxy.
You still need to put the finishing touch on the garage cleanup.
Of course if it s used for industrial or public spaces then it could have a grave effect on its durability and lifespan.
However sometimes your epoxy does not apply to your floor properly.
However for residential spaces the lifespan might take longer than expected considering the number of people using the floor on a daily basis.
The same goes for the tensile strength you re just not going to be able to put anything on the floor that will come anywhere near to the breaking point to all but the cheapest floor epoxy paints.
A colorful shiny epoxy floor coating that will have you and your car feeling like you re driving into a showroom every time you come home.
With a weak crumbling floor a solvent thinned epoxy used as a primer would have consolidated the surface maybe well enough for the pigmented floor epoxy to.
To test pour water over the bare concrete.
The key factors for epoxy are pot life thickness type of epoxy and the hardness of the final topcoat that will be exposed to the wear and tear of.
Sealants curing agents concrete hardeners and other treatments to the concrete will interfere with the bonding of the epoxy.