amacman.....

are you a ~tradesman~by chance.

Just a quick question...as the last time I worked with Epoxy was a good while ago. Does it still slightly yellow over time ?

Has the working time gotten better as ~technology/time~ improves. It was literrally a 25 minute window from the time you mixed the stuff , to the time you packed it into the joints, to the time you had to scrub it off the tiles...
All and all, it was like a Olympic Marathon working with this stuff.

I agree sealers do exist on the market, and there are good and bad ones (I still prefer the solvent time), but it was my impression that epoxy was considerably less resistant to absorption/staining than traditional grout. I am talking about the inevitable oils dripsand such, for one who would work on cars and there was tile enough.