PN55 is a rust proof penetrating oil for use on equipment. It penetrates rapidly into corroded metal surface and can help to loosen binding screws, nuts and etc. that are caused by rust. PN55 has high lubricating properties as compared to other rust removal products because of the presence of PTFE compound in the solution. PN55 is also odourless and it adopts two way nozzle, making spray from bottom up possible.