No I never considered it. Vehicles already have some sort of protection. I recall vehicles rushing out in the 80s. Those days seem to be gone. Only vehicles I see rust are the people who decide to put bigger tires on and the drive so that salt into the edge of the wheel well. You know what I’m talking about. Those pick up trucks with the rust above the wheel. If you drive it in ground and live where it snows. Don’t plan on washing it when it’s 6 years old. You know some people take care of the paint for the first few years and then forget about it.
As for me I get the under carriage cleaned in the winter 1-2 weeks to keep the salt off. I have a pet peeve of seeing cars in front of me with it sprayed on the muffler and half of it peeled off. Looks ugly to me.

 

The only thing undercoating does is gum things and add about 30 pounds to you car. Waste of time and money.

 

The electronic gizmo is a waste of money.
Our hood and front fenders are aluminum, the frame can be treated like any other vehicle, but avoid the undercoatings that actually encapsulate the frame (the tar-like coatings). They can't possibly get complete coverage, and salt and water get under them and destroy the frame with no obvious signs until you tap the frame and your hand goes through.

The liquid coatings like Fluid Film are about the best protection you can get, and won't trap salt.
Best protection is frequent washing, and avoid storage in a heated garage. Elevated temperatures increase the speed of corrosion.

 

The electronic gizmo is a waste of money.
.....

Best protection is frequent washing, and avoid storage in a heated garage. Elevated temperatures increase the speed of corrosion.

x2

Those electronic gizmos work just fine to prevent rust on the hulls of ships because they work when the steel hull in contact with salt water in the ocean to complete the electrical circuit to ground. Might work if you toss the rubber tires and ride on the rims, but absent that won't work well on a car body which is essentially like a "Faraday cage" unless you plan to use it as submarine.

 

Hmm, the dealer did mention that I would need to come in to replace the anode(s) every couple of years, and then they would warranty against rust for 10 years or so...Living in Ontario snow/slush and salt are way of life in the winter and I have always used Krown Rust control with good results. After the normal warranty expires working under the car and fighting the rusted components is not fun for me. I appreciate the feedback, thanks all.

 

KROWN or CORROSION FREE works well. Stay away from Zeibart. Since many vehicles have underbody covers, I would recommend going back to have the salt removed and cleaned then resprayed with Krown. They will tell you to come back every year but it is not necessary. Once every 3 years is good enough. New vehicles already have protection from frame rusting out. Never get your car washed when temperatures are below freezing. Never wash the car on hot days. Washing on Cold or Hot days can cause Paint Problems. Wash when temps are normal and prefer not to wash in the sunlight. If you live near the ocean or where the roads are very heavily salted, brine, with sand during the winter then you should go someplace to have the vehicle placed on a lift and washed down as automated car washes only spray upwards and force the Contaminates further in causing more rust.

 

KROWN or CORROSION FREE works well. Stay away from Zeibart.
Since many vehicles have underbody covers, I would recommend going back to have the salt removed and cleaned then resprayed with Krown. They will tell you to come back every year but it is not necessary. Once every 3 years is good enough. New vehicles already have protection from frame rusting out. Never get your car washed when temperatures are below freezing. Never wash the car on hot days. Washing on Cold or Hot days can cause Paint Problems. Wash when temps are normal and prefer not to wash in the sunlight. If you live near the ocean or where the roads are very heavily salted, brine, with sand during the winter then you should go someplace to have the vehicle placed on a lift and washed down as automated car washes only spray upwards and force the Contaminates further in causing more rust.

Stay away from Zeibart.
I suspect you have never had a vehicle rust proofed by Zeibart. Not looking to argue at all. But the proof is in the pudding they say. This is my 1993 F150 Flareside that I ordered and have owned since it was brand new and continue to own. Zeibart was applied week after I received it and maintenance done every year. 100% original body panels. 80% original paint. Painted sun faded hood and top. I live in the salt belt of southwest Ohio. If you keep them clean and flush the salt off them religiously plus do you yearly maintenance Zeibart works. My 21' Venza is Zeibarted.

 

Rubberized will destroy your car. Fluid film is probably the best. Krown is good too, but pretty regional.

 

I did have the Krown rust control applied last fall. Also had good results with it in our 2009 Highlander, still rust free and we apply the coating every three years or so.

 

This is all I've ever seen happen. Multiple trucks, all rotted frames after 10 years.

 

Well while the mechanic says it is Zeibart undercoating I can tell you that is not what Zeibart in our area uses. Zeibart is not a rubberized undercoating. It does not flake off like he is showing. My bet is that was applied at the dealership not Zeibart. My truck is over 30 years old, and the frame is still good and solid.