Reply by SMP

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Posted on Has anyone tried "seasoning" an old vintage plane like a pan instead of "japanning"

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1462 posts in 469 days

#1 posted 09-20-2018 06:23 PM

Not really. Japanning is a thick layer of a very hard and durable asphaltum finish that not just resists rust, but also various chemicals and abrasion. With seasoning, you are baking oil into the open pores of the cast iron, while japanning covers them over completely into a smooth finish. The only real similarity is that both use heat as a curing mechanism.

I used to think that too about seasoning until I learned to do it correctly. Take a look at the first post I linked. Its the BLO in your mixture that is polymerizing that creates the hard thick coating(same as what seasoning correctly with flax oil does). The asphalt provides a nice color though. I may try it without pigment just to see, so now to keep it from warping. I think I read somewhere about letting it cool slowly with the oven door cracked open on low.

edit, just read that it needs to get to ~1500 degrees to warp, I should be ok at 500 then. no chance my oven would ever get that hot, lol

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