Rookie question - what kind of grout/sealant do i need?

[ergonomics]

Hi chaps,

I've got tiles behind my sink area.. and when I moved in it had a bunch of cracking/mouldy grout where they meet the worktop. I put some fresh stuff down.. but that's also taken a beating (read: got a bit wet) and over a few months has cracked and split off. I'm guessing I put the wrong thing down.. what product do I need to do this?

Cheers!

 

[Lumeycom]

Silicone.

grout wont work there as it will move a bit. If your going to put white silicone on get some Dow Corning stuff - little bit more expensive but will last forever (almost)