Arubandi07
Contributor
I don't think Sealife has ever advised such. Silicon grease is also a magnet for hair & sand. My home dive bud used to dive my old DC310 but he used silicon grease on the O-ring - and flooded it. I've never flooded one.
I actually do lightly coat the O-ring before cam use, ... so far, 6 years/no flood, but I should mention that, when it comes to keeping the O-ring free of 'contaminants', I'm probably borderline OCD, so ...