grout, silicone, or caulk?

[ekon]

just asking for a bit of advice..porcelain tile on osb&backerboard..grouted with mapei ultracolour plus in mid grey..timber edging..what to fill gap (4mm) with?

grout?..colour would be identical

or silicone (Everbuild "Grey" -25% flexibility factor"?)

or caulk/external frame sealant (Everbuild "Grey")

this is a kitchen worktop area incl hob and drop-in sink

 

[tpt]

silicone. You can get a mapei one that exactly matches.

Just a word of caution though, you really needed epoxy grout on a worktop

 

[gregers]

this,thats if they do the correct colour?

https://www.youtube.com/watch?v=ab23sDHhUfE