Most sinks say silicone can be used to secure if clips cannot be used.
Really, surely not your ordinary silicon. Silicon would peel off the metal after a while. Takes time to set as well, so how is the sinktop held secure and close to the worksurface? By the way, this is not a 'dig' but quest for knowledge.
Instructions do say the cutout in the worktop should be siliconed to seal the chipboard.

