grouting stone tiles

[brizzo]

hi all hope you had good easter
i've just finished tiling the bathroom with natural stone tiles.being carefully not to get any adhesive on the face so no stains ,the tiles are a light sandy colour and are quite absorbent
so i was wondering if any of can tell me which is best "to grout before sealing the tiles or to grout after"
thanks

 

[Jasonb]

at least two coats before depending on absorbancy

Jason