Mine was red devil. On the other hand, the tile I sealed was for counters and shower stalls. I don't know that I would want to put silicone on my tile floor without wearing a crash helmet! Talk about luposlipophobia! (fear of being chased around your kitchen table on a newly (siliconed) floor in your socks by hungry timber wolves)
I don't know why the bleach would have stripped the sealer, I'm not a chemist. At the same time, I don't think I would use white grout on a floor in the first place for the very problem you are fighting. I don't know that you will have a winning battle. I don't remember if this is in your kitchen, but don't cook any tomato sauces!