> For the complete documentation index, see [llms.txt](https://docs.libertyswap.finance/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.libertyswap.finance/zkx-wallet-web-app/shielding-tokens-entering-private-mode.md). # Shielding Tokens (Entering Private Mode) Shield converts public tokens into private Railgun balances. As noted in 2.1, this is only available on accounts that have a recovery phrase โ€” private-key-only imports cannot shield assets.
The Shield screen includes: * **Add recipient** - the destination is always a private `0zk` address, typically your own private address. * **Route selection** - choose between: * **Fast route**: roughly 2 minutes, a **0.5% fee**, supports receiving a different token than the one you sent, and covers roughly six chains. * **Slow route**: roughly 60 minutes, a **0.25% fee**, but the recipient receives the **same token** that was sent, and supports fewer chains. * **You send** - choose the source token and network (for example, USDC on PulseChain), within the token's minimum and maximum shieldable amount (observed as roughly **10โ€“25,000 USDC**). The token picker groups available assets by network: PulseChain, BNB Chain, Ethereum, Base, Arbitrum, Polygon. * **You receive** - shows the destination token labeled with a **RAILGUN** suffix (for example, "USDC ยท RAILGUN"). Available destination networks can be narrower than the source options โ€” for USDC, only Ethereum and BNB Chain were available as receive networks during testing. * **Gasless mode** - enabled by default; when enabled, the shielding fee is used to cover gas costs so you don't need a separate native token balance to complete the transaction. * **One last check** - a confirmation summary showing the chosen route, gasless mode status, the resulting private RAILGUN balance, and an explicit warning to double-check the recipient address.