F
Flintstone
Years ago when grout basically came in one sort, you had to add your own flexi additive if you wanted flexible grout, and wide joint grout just had a load of sand in it. I was shown a way for certain tiles, grouting as usual with a thin ish mix, then getting a handful of grout powder and scattering it over and spreading it about, then brushing it all off, then wash down as usual, it left the joints very full and made a real nice job when needed. Anyone else remember that way ?