Castrol PX 1 - MOD Specification Rust Preventative - 5626
PX 1 is listed by Ministry of Defence as a corrosion preventative compound: soft film, cold application. It is a mobile liquid which, on evaporation of the solvent, deposits a thin soft greasy protective film.
Available in: 20L, 203L drum
Short term preservation at medium ambient ground temperatures. Protection of certain engine cylinders, valve gear, complete engines and gun barrels. Preservation of ferrous and light alloy sheets in storage. Can be applied by cold immersion, spraying or brushing.
If required it may be removed with petroleum solvent, alkaline cleaner or vapour degreaser.
Indoors - 9 months
Outdoors - 3 months
The period specified for outdoor use assumes primary protection from the elements by tarpaulin or other form of cover.