The answer
No. Durability reduces physical destruction risk but not disclosure or theft. A found seed plate can give an attacker full control.
What to do next
Separate physical access controls from fire protection and consider a tested passphrase or multisig strategy.
Trezor hardware wallets
Hardware wallet or backup product relevant to a self-custody question. Availability, supported assets and local eligibility must be checked before signing up or buying.
Visit Trezor hardware wallets ↗Official provider link · Compare suitability and availability before choosing.