[MBTRAC]

I use it Penetrol as a rust preventative undercoat on all my farm & truck gear, including slashers (i.e your bush hogs), fertiliser sprayers, chassis, mower decks etc..- some of which are now 20+ years old without any signs of rust as a result - some of our farms are in highly mineralised/corrosive soils where a steel black star picket will rust out in c.3-5yrs, this environment combined with lime/phosphate/nitrogen fertiliser usage & chemical sprays really takes it's toll if our gear is not treated to prevent rust.

On the mower decks, every 6 months I drop the decks & paint with 2 coats of penetrol & then 2 coats of industrial gloss black paint to prevent rust, these also seems prevent most of the underdeck grass "hang ups" -As the seasonal mower "recoat" is about due I'll try & post photo's in the next few weeks.

Penetrol is relatively cheap & used in marine applications - it seals to prevent/treat rust like no other product I've found available & also if required provides an ideal bonding undercoat for any topcoat.

Whilst I've tried also the bed liner products & many other rubberised/polymer type products, & still use lanolin coatings in specific applications, in my experience most seem to be flawed as once they scar, wear or chip the water/moisture gets in behind the "coating" allowing rust to form quickly/unseen in the humid environment between the remaining"coating" & the metal- Penetrol because of the way it bonds doesn't let this happen.