Home > My Land Rover Blog > Paint a Defender chassis with Neutrarust 661 - Land Rover Blog
My experience with Neutrarust 661, and several other "rust converters" I had used before, have made me realise that there is no such thing as "rust conversion" and the only way you can treat rust is to remove it.
Likewise, any off-the-shelf paint, like Hammerite or similar is basically useless on a vehicle. The chassis undergoes to much flexing and exposure to the elements that they can't handle it.
My learning experience is illustrated by this set of photos. I wire brushed the entire rear chassis, coated with Neutrarust 661 and then coated with some metal matt black paint. It looked amazing! This was painted in April. The next set of photos show the chassis the following February, after 10 months (including a winter). It doesn't look great.
About 2 years after that I coated the chassis with Dinitrol. 4 years after this, the last set of photos show the chassis's condition. The full range of photos span 7 years. I have concluded that a pre-existing rusty chassis cannot be saved, only delayed, and it's probably a job that is required every 2 years. I think that an underseal product is better than paint.
Long term, the only real solution is a galvanised chassis.
