Hi returning to tiling after a 25 year break.(I actually trained in the late 1980s) Materials have changed significantly, including some huge format tiles. My question regard epoxy grouts for those who have experience in :- Are they as easy to use as traditional cement grouts? ( the videos make it look so) Being waterproof do epoxy grouts negate the need for Silicon finishing of wall to floor areas and corners? (talking concrete and block construction not timber or stud walls which have more flex) Many thanks for sharing your experiences and tips on new fangled materials you can give.