How to Make a Metal Seed Plate for Crypto Recovery

Paper is the default way most people store a recovery seed, and it’s also the weakest. It burns, it soaks through, it fades. A metal plate fixes all three problems at once. Here’s how to make one yourself, what it takes, and where a DIY plate still falls short of a purpose-built one.

What a Metal Seed Plate Actually Is

It’s a flat piece of metal, usually stainless steel or titanium, that you stamp or engrave your recovery seed onto instead of writing it on paper. Done properly, it holds up to fire, water, and years of handling in a way paper simply can’t.

Why Metal Beats Paper

Fire resistance. Paper ignites well below the temperatures metal can shrug off.
Water resistance. A flood or a burst pipe destroys paper; it does nothing to engraved steel.
No fading. Ink degrades over years. An engraved or stamped word doesn’t.
Genuine longevity. A properly engraved stainless steel plate can stay legible for decades with no special care beyond keeping it dry and away from corrosive chemicals.

What You’ll Need

A metal plate. Stainless steel is affordable and engraves reasonably easily by hand. Titanium is tougher and more corrosion-resistant but harder to work without proper tools.
An engraving tool. A basic carbide-tip hand engraver works for a DIY project. An electric or rotary engraver speeds things up and gives more even results.
Safety gear. Goggles and gloves, engraving throws off small metal shards.
A stencil or template (optional). Print or write out your word list first so you can trace it, rather than freehand engraving directly and risking a mistake.

Making the Plate

Choose your plate. A roughly 3×5 inch stainless steel or titanium plate comfortably fits a 12 or 24-word phrase.
Clean the surface. Wipe it down with a cloth and rubbing alcohol so the engraving tool doesn’t skip on dirt or oil.
Lay out a template first. Write your word list on paper exactly as it appears in your wallet, and check it twice before transferring anything to metal.
Engrave word by word, working from one corner across in straight rows, checking spelling and order as you go. A single wrong letter can make a word unreadable as a valid recovery word.
Inspect the finished plate against your original phrase, letter by letter, before you consider it done.
Wipe away metal debris and, for metals prone to tarnish, a light protective coating helps keep it legible longer.

Storing It Once It’s Done

A finished plate is only as good as where you keep it. A fireproof safe, a bank safety deposit box, or a hidden spot only you know about are all reasonable choices. Whatever you pick, avoid storing your only copy in one place, and see our guide on backing up a recovery seed for how to spread copies safely across locations.

Where DIY Falls Short

Hand-engraving works, but it’s slow, easy to get slightly wrong, and limited by whatever tools you have on hand. A single misengraved letter can turn a valid word into gibberish, and there’s no way to know until you actually try restoring the wallet from it, which is exactly the wrong time to find out.

This is the gap RecoverySeed.cz plates are built to close. They’re 1.5mm stainless steel (grade 1.4307), rated for fire up to 1510°C, water, and corrosion, with pre-formatted fields so there’s no guessing at spacing or layout. The Standard edition gives you 24 clearly marked fields, a polished surface, and comes with an engraving pencil and polishing cloth so the process is far more forgiving than freehand work. The Shamir Backup edition is built for splitting a phrase across multiple plates, and the Grid version punches letters into a grid instead, for extra discretion. Full range on the products page.

Mistakes to Avoid Either Way

Not double-checking before engraving. Verify the full phrase against your wallet’s display before you make it permanent, our guide to checking a seed’s correctness covers this step in detail.
Storing it somewhere obvious or unprotected. A plate on a shelf is barely better than paper in a drawer.
Using a metal that corrodes easily. Cheap, untreated metals can degrade faster than you’d expect.
Keeping only one copy. One plate in one location is still a single point of failure, just a more durable one.

FAQ

Is a metal seed plate the only good storage option?
No, but it’s one of the most durable. Paper works until it doesn’t; metal removes fire and water from the list of things that can destroy your backup.

Can I just write on the metal with a pen?
No. Ink wipes and fades. The word needs to be physically engraved or stamped to survive long-term.

How do I know my engraving is accurate?
Check it against your wallet’s displayed phrase word by word before you consider it finished, and again afterward.

Where should I store the finished plate?
A fireproof safe, a safety deposit box, or a secure hidden location, ideally more than one copy across more than one place.

The Bottom Line

A DIY metal seed plate is a real upgrade over paper, and worth making if you have the tools and patience to do it carefully. If you’d rather skip the risk of a slipped engraving tool or a hard-to-read word, a pre-formatted plate built for exactly this job removes most of the ways a DIY version can go wrong.