Originally Posted by Wolf Fabrication
Yep, all the prep. Don't get me wrong, the stuff is great for garages, but shite for industrial applications where welding, plasma cutting, dragging heavy stuff, etc is involved. I can drop a wrench and the stuff chips.
Sorry - late to the party but same thing here. I did Sherwin Williams 2 part epoxy that had a good rep. Brand new floor, cured 45 days (and trust me, staying off a new shop floor for 45 days was tough!) acid etched and applied as per SW's instructions. It help up great for about a year. The slab has vapour barrier underneath as well as 2 inches of styro insul. It's now so bad that I am contemplating moving all the equipment out of my shop to sandblast/beltsand/burn the crap off.
I guess it depends on what you do in your shop. If you keep mostly toys in your shop, epoxy will likely be great. If you keep mostly metalworking tools, epoxy is not likely to hold up for a long time. I know mine burns like crazy if I mig on it. I have literally lit the floor on fire with welding sparks.