Originally Posted by
David Keller NC
Dustin - The best rust protection isn't film-forming anti-corrosion compounds, nor any sort of oil or wax.
The best protection is to lower the humidity to less than about 60%. Yes, you can do this in a tool chest, a tool cabinet, a few rubbermaid boxes, and other enclosures. But that doesn't fix the overall problem - you mentioned your shop (garage) is way too hot and humid to work in during the summer.
So why not fix both problems at once? Spend about $200 on some pink paper-lined insulation, and another $300 on a window-mount heat pump. These modern heat pumps are extraordinarily efficient compared to the old-school window air conditioning units, and they have the bonus of allowing you to heat your shop in the winter. You can set your heat pump at a relatively high temperature (e.g., 85 deg F) when you're not in the shop to save electricity, and lower it to a more comfortable working temperature when desired. As long as the heat pump runs intermittenly about once every hour or so, it will keep the humidity in your shop well below the rust point, and will also considerably reduce the complexity in calculations/judgment needed to factor in the wood movement you'll experience in your projects when you move them from a hot and humid space to the inside of your home when they're complete.