Large gap to fill behind kitchen up-stands

[uptoyou]

Hi all,

Not strictly tiling, but I think this question could go here best!

Decorated our kitchen a couple of years ago, but when the guys who fitted the stone counter top fitted the up-stands, there was a large gap as the wall is quite out.

I filled it 2+ years ago, I think with Soudal, and since then it has shrunk and cracked so I am replacing it (it's pulling out quite easily).

I think I probably tried to fill too much of a gap in one hit - maybe should have done a couple of layers and allowed to dry in between?

What's the advice here please on the best caulk and method of application - it's about 12mm at its widest?

Thanks!

 

[freddiemercurystwin]

caulk saver strip - Google Search

You need to clean al the old silicone out meticulously, only apply the new silicone in one hit.

 

[uptoyou]

Thanks!
Does this 'crush' at all when it's pushed into the gap?
It's 12 mm at it widest, but as it tapers down into the silicone they used to attach the up stand, at some points the depth is maybe 2-3mm , at other places it is 10mm?

I'm just wondering if this loosely sits in the gap, or if it can be pressed in and almost molded to fit?

Here's a good example...all caulk is removed, sealant remaining in one section, nothing in the next.