Some time this week, I'll be calling a qualified technician to connect my gas hob to gas and electricity. Connection will be done with elastic pipe, so that's not a problem.
The only problem I have is that there is a hole in the countertop, obviously. And I do not want any spillage to get underneath the hob. Especially not between the cover part (blue on schematics) and supporting structure (read on schematics). On the other hand, I cannot install rubber U shaped seal on the edge of the top cover part, because it would introduce tension, and that is strictly forbidden for this hob due to gas-related safety reasons. Also, anything used must be able to routinely endure 90°C (roughly 200°F).
And last but not least, I do not want to put a silicone there, as it would ruin the steel on concrete look I aim for.
So, is there any way to do it reliably and safely without ruining the look?
To be clear, I'm not prejudiced against the silicone. Simply, I just don't know how to do it in a way that'll seal the "blue" part without being too visible.