What can I spray on to bare metal to keep it from flash rusting from one day to the next. I’ve heard that some people spray on WD-40 or silicone spray to protect it – does it work? Could I just use a spray bottle of metal wash (does it have to be used immediately after mixing)?
The project I’m working on is sitting outside right now under a tarp, so it’s fairly humid. It’ll move into the garage once I’ve removed all the rust.