when should i Silicon floor edges?

[alex1963]

silicon should never sit on the grout ,the joint should be raked out after grouting,this also means that a adequate expansion joint should be left between the tiles and the wall/skirt otherwise your silicon will peel off. andi have tried to train several plumbers to use silicon properly and its never worth the effort!!

 

[Falcone]

learn summin new everyday on here.

I just thought Silicon could sit on the grout as the grout is flexible it didnt matter but I know different now cheers.

 

[Gazzer]

Ok lets put it another way. In a perfect world when tiling Bathrooms etc, i prefer to tile the walls and floor without any sanitary ware fixed (except bath and shower tray. There by all sanitary is fixed after tiling. So the order of the job would be,
Bath and shower tray
Tiling
Grouting
Fix of sanitary
Silicon.
This would mean as you say the Silicon would be on the grout as opposed to being in the joint. Personally i have never had any problem due to this in over 30 years.
Most failures in the Silicon dept are down to not applying to a clean dry surface in the 1st place.
When smoothing the Silicon to get the finished look i prefer to apply the Silicon using a suitable mitre on the nozzle and to make sure the Silicon is pressed very lightly between the 2 surfaces. Then i use a wet finger either moistened with saliva or a weak mix of washing up liquid and water. For the final finish i like to spray the Silicon with a fine mist of washing up liquid and water and tool over with a rubber finger or the like. I guess what ever works for you is best.

 

[alex1963]

i guess i live in your perfect world! here in oz there is only bath and optional tray fitted be.for tiling ,everything else is fitted afterwards usually by the plumber.i fill the joint with silicon ,spray it with dilute dishwashing liquid,and smooth it witha wet icecream stick -gives a nice tight contour.there is also a tool made by maxisil in germany which gives different contours