Thanks, I looked at Lopp's tests. And the closest storage solution to compare with is Crypto Keys, which ranks A overall. The difference with Seed Keys is that I used 316L stainless steel instead of 304 - so it should fare even better on corrosion.

Hypno

You should look at the stress tests performed on other metal plate storage systems, think about how yours would hold up.

bitcoin

I couldn’t buy it, so I just made it

You should look at the stress tests performed on other metal plate storage systems, think about how yours would hold up.

https://jlopp.github.io/metal-bitcoin-storage-reviews/