On 2 Nov, 16:38, stuart noble wrote:
On 02/11/2010 15:54, Ed wrote:

stuart noble wrote:

snip?

Silicone if it's going to get wet, but not otherwise IMO. I don't like
it because, unless it's perfectly done, it tends to picks up grime in
every little imperfection (of which there are a few when I do it :-)).

How about putting a bead of silicone and then sprinkling it with a
dousing of grout powder from a sieve?

Try it! I wouldn't though

nor me - get a fugenboy kit and go for the smoothest finish you can do
- should be fairly straightforward on a 5mm gap
google on here for loads on fugenboy s

Jim K