I will be doing some kitchen tiling soon, using 10 x 10 cm ceramics. The walls are bare plaster which I was planning to prime with BAL APD. Topps have suggested BAL White Star and BAL ivory grout. Tiles are a bit rustic looking, so they dont have perfectly straight edges. I am aiming for a 2-3 mm grout line, but it may be a bit wider in places - would I be better with a different grout, or use an additive? Is there anything I can use to seal the grout, especially round the hob area, to prevent staining by splashes of hot oil, spag bol etc? Cheers, Bob.