That’s correct. flax oil can work as a top coat over layers of more resilient coatings that don’t become as hard (thus they bind better and aren’t brittle). But there’s almost no point to a final hard flax layer. It’ll seem really nice at first but it’ll still eventually scratch and chip. At least if you apply it over more resilient layers the end result won’t be a need to start all over.
https://www.seriouseats.com/how-to-season-cast-iron-pans-skillets-cookware
According to Kenji Alt Lopez flaxseed is bad news bears.
That’s correct. flax oil can work as a top coat over layers of more resilient coatings that don’t become as hard (thus they bind better and aren’t brittle). But there’s almost no point to a final hard flax layer. It’ll seem really nice at first but it’ll still eventually scratch and chip. At least if you apply it over more resilient layers the end result won’t be a need to start all over.