Removing Concrete paint to use epoxy

[Coastie]

The wife and I just recently purchased a new home,well new to us. Anyway the garage floor was painted with I think concrete paint years ago. Will the epoxy work once I use muratic acid to etch it and then pressure wash it? I would love some feedback or any input is appreciated. We are in Florida and it always hot so Im hoping the temp is in my favor.

 

[thundercow]

The acid will not penetrate areas where paint remains--it will have no effect. Pressure washing is not going to do a very good job of removing that paint, and you'll want to get that paint off of there to reveal fresh, scored concrete underneath. The best approach is physical grinding--if you leave old paint on there and go over, you'll most likely--and I mean 95% likely going to have a failure withing 3 or 4 years.

 

[SC-Eric]

Thundercow is right... you need to remove the paint before acid etching. There are also chemical methods (like our OrganiStrip products) that you can try but if you can get a good price on a grinder rental it's the best way to go. The OrganiStrip products are more expensive than conventional strippers but they are biodegradable and can be hosed down a drain.