Preventing corrosion during a build?

67a273post said

Wd-40=water displacing/40th formula zero water in it was created to displace water and took till the 40th formula to be what it is today

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I agree. But it doesn't last forever, it's only a temporary thing. You can't expect it to protect for very long, depending on conditions. That's where that BoeShield, or for longer term storage Cosmoline come in.