Another Sealer Question

Submitted to General Questions

Please might I ask….
Curious to know what is “engine enamel” …..if you happen to understanding this term?

A YouTube personality uses it as a sturdy sealer ( seems to not be a polyacrylic) and wondererd if this might correspond to a Rustoleum product that might be handy to have in my available inventory….unless I already have it.

Choosing the best sealer is always desired, I have made memorable unfortunate mistakes before.
Always ready to improve my sealer education.
Thank you!