Comment by arcticbull

The "scary red" polydimethylsiloxane is in basically everything, and it's inert, non-toxic and non-flammable. It's permitted in the EU as E900. It's an anti-foaming agent used in trace quantities to prevent oil from splattering on the employees.

There were no negative effects on rats at over 2g/kg. [1]

[1] https://efsa.onlinelibrary.wiley.com/doi/10.2903/j.efsa.2020...