I have some leftover parts from my tractor repair that i want to save for "just in case". Many are machined steel and cast iron. There is even a planetary gear set in there. They may be sitting for decades. What should i do to prevent them from turning into an unusable ball of rust? Thanks
Spray a heavy coat of CRC SP400 on them. It dries on as a waxy coating that's kinda annoying to remove, but it's very much meant for preserving metal parts in long term storage. Cosmoline is also basically the same stuff.
EvanB
MegaDork
12/19/18 10:35 a.m.
Waxoyl type spray that forms a wax coating on it, can be removed with solvent when you need to use the part.
LPS 3 is good but expensive: https://www.amazon.com/2-Pack-LPS-Premier-Rust-Inhibitor/dp/B01N3RZI0J
lrrs
HalfDork
12/19/18 10:43 a.m.
I think it was on you know what tube, that I saw a guy that stored a crank for many decades in a 5 gallon bucket of motor oil. Looked dark so I assume it was used oil. Crank looked pretty once the oil was cleaned off.
44Dwarf
UberDork
12/19/18 10:55 a.m.
55 gallon drum, place a layer of oil absorber matt in bottom, load parts, pour in a gallon of WD40, Seal up the top, remove the small screw port in the lid. Disconnect gas line to Mig welder. run line in to drum and flow gas for a few minutes and screw on cap, shut off gas and reconnect to welder. Bottled gasses are dry and will push out some O2.