I keep my dog proof coon traps out year round to protect my chickens and even with frequent applications of protectants they have very minor rusting. Has anyone used Evapo-Rust to knock the rust off of traps?
No I haven't. It they aren't super bad/crusted rusted, just dip them in log wood dye or some other trap protector. The rust allows the trap to take the dye better.
Evapo rust may remove the rust, but won't provide protection like a dye/dip does.
If rusted really bad, I soak mine in a vinegar water solution for a day or so, then hit them with a hose or power washer. Rust comes right off, wait a day so they rust up again, then dip.