Cutting grout joints in shop floor

[Fyrme]

Please forgive the ignorance here. I'm sure this has been covered before, but I'm not even sure of the proper words to use in a search. I have had thoughts of cutting faux grout joints in the shop floor on like a 4'x4' diamond pattern, just for looks like you would do on a patio. My question is, if I do this, and then fill them flush with a portland cement before applying clear epoxy to the whole floor, will I regret it?

 

[Zeke]

Sounds like a neat idea to me. I'd color the grout some for the accent.
You may want to put the sealer down before you grout trying to keep it out of the cuts. That and tape. Someone here may know of a product in an 11 oz. tube.

 

[txvwnut]

A freind of mine actually did this in his house. He cut or scored shallow lines in his slab then stained and polished it and clear sealer and it looked awesome, the grout lines came out just a little darker than the slab stain and couldn't tell it wasn't tile. If you keep your score lines shallow I don't see that you would have any issues more issues than if you tile and grout.

I just realized you were asking about grouting the lines, my buddy didn't do this just made his marks shallow enough to be seen and stain up a little different than the flat part.

 

[aircommuter]

You want to fill them with non sanded grout not portland cement by itself. Then seait second time after that cures. The first seal coat is to keep the grout from staining the rest of the floor surface and to reduce chipping while cutting.
There are systems available where you stick down a plastic mesh then fill the spaces like faux tile then remove the plastic grid and grout another color, they have various shapes like octagon that you could not cut.

 

[Fyrme]

So you're saying put an epoxy seal down on the whole floor and then make the cuts, fill and epoxy seal the whole floor again? Or just seal the cut/grout joints?
My thoughts were to cut and grout with like a black grout, then grind the entire floor just before sealing everything once. I figure the grind would remove any black grout that didn't get removed off the concrete surface.

 

[Zeke]

So you're saying put an epoxy seal down on the whole floor and then make the cuts, fill and epoxy seal the whole floor again? Or just seal the cut/grout joints?
My thoughts were to cut and grout with like a black grout, then grind the entire floor just before sealing everything once. I figure the grind would remove any black grout that didn't get removed off the concrete surface.

Either way.