Protecting undercarriage with spray paint

[dchemphill1]

I was researching undercarriage treatment and saw a guy who very cheaply protected the underside by using rustoleum spray paint and covered the underside with it. Claims he did this on a vehicle earlier and compared it to a similar vehicle a friend had but did not spray paint...the friends vehicle had way more rust. Thoughts about this DIY undercoat method.

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[Rico1111]

I use fluid film every 6 months on mine to keep the rust down. I usually put some rubber gloves on and then heavily soak a rag and go over the easier to reach spots and the ones I can't just get the spray.
https://www.amazon.com/Fluid-Film-1...ocphy=9002242&hvtargid=pla-568683159266&psc=1

 

[GeckoJosh]

I use fluid film every 6 months on mine to keep the rust down. I usually put some rubber gloves on and then heavily soak a rag and go over the easier to reach spots and the ones I can't just get the spray.
https://www.amazon.com/Fluid-Film-1...ocphy=9002242&hvtargid=pla-568683159266&psc=1

Same here..fluid film

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