Various de-icing products such as salt brine are used on roads to make them safe for driving, but these products cause corrosion. A liberal application of automotive undercoating should do the trick, but which undercoating product is the best?
Project Farm tests:
- Flex Seal,
- WD-40 Specialist Long Term Corrosion Inhibitor,
- Fluid Film,
- Corrosion X HD,
- CRC Heavy Duty Corrosion Inhibitor,
- Corrosion Block, and
- used motor oil.
Each product was thoroughly tested as car/vehicle undercoating for resistance to corrosion (oxidation/rust) and rock chips…