Has Anyone Applied Additional Undercoating?

[slippers]

Title says it all, has anyone applied any additional undercoating to their new 4Runners?
When I bought my FJ in 2010, I used the NAPA black undercoating basically under the entire body, minus any running gear and suspension parts. Pretty sure it's an asphalt based product, dried very quickly, wasn't soft, never had a speck of rust anywhere. Cleaned easily, looked great even when I sold the vehicle. The second owner did like the fact that it had been undercoated, it was a selling point.

Took my time, masked any parts that needed it, no overspray, no gaps, looked pro when finished.

Under the hood and in the engine compartment I used a much lighter, also NAPA spray, was an amber color, dried to semi-hard, waxy texture, was perfect for the firewall, underside of hood, and inside the fender wells and grill.

Just wondering if anyone else has done it or has plans to do it to their new 4Runner, what products they might use, etc.

Or, am I just pizzin in the wind? The vehicle is new, spotless, perfect time to apply it with regards to a clean surface.

Any advice? Thanks up front.

 

[<<<<]

If 4Runner was unit body then yes but the frame I keep bare paint and convert any surface rust after each winter. I dont see any good ways to cover entire frame while on vehicle.

 

[NuclearN8]

Fluid film

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[17KT4R]

Ontario Roads

Up here in Canuckistan we love to spray brine on the roads prior to freezing temperatures basically because it allows them to use less rock salt thereafter. Lovely stuff that crap is, mixed with typical road spray in the winter this stuff caries with the mist and settles into places most vehicles never see corrosion start.

Friend of mine owns a RustCheck outlet and I believe the product really does it's stuff. Yeah it drips a bit after applications and in the spring again from crevices but its easily washed off. They also apply a clear gell coat type product to frame and major surface areas of the underbody.

I sold a 2000 Jeep TJ recently with only minor surface rusting at the hinge points (17 years of seasonal spray down through RustCheck). Most of those vehicles are corroded beyond road safety certification within a decade out here. So yeah - I'll be taking our new 4Runner over there in the fall for its first application. The other popular product in these parts is through a company called Known Rust.

Even with the little amount of snow we've had in the Toronto area these past few years, the amount of dried brine and rock salt on most roads in the winter make you feel like you're driving in desert storm, there is just so much of that crap settling into every part of the truck - regular washing can't keep up.

These products do what they are supposed to do. I would stay away from asphalt based, any oil based (as in refined) and anything wax laced. Stay with a name brand product with the rep to back up the application, and guarantee. I think I pay $125 per year. Cheap insurance for sure.

Cheers, :beer:

 

[Friggin Idiot]

I used some rattle can Rustoleum Rust Converter after last winter. It did just fine. This year, I'm stepping up the game with Corroseal, so I don't have to worry about overspray and can hit where I need it. Might still grab a rattle can of the Rustoleum stuff for what I can't reach.