Slates and tiles

After lengthy search and numerous experiments with linseed oil and various synthetic sealants we've taken the plunge. Bought terracotta tiles for kitchen cheap(£15/m instead of £45/m) but nearly a third are broken! We have calculated that we will have enough whole tiles for the floor if we don't lay any under the work top. Done! And some money back too! Next thing will be the laying...another story!