Rust Prevent - Fluid film or Eastwood internal frame coating

[Flyin-Ryan]

My very first post. This forum is awesome. 

 

I just purchased a 2011 Crew cab 1500. I want to keep this forever. Everything on this truck is solid and I want to keep it that way. My question is, should I pull out all the plugs and spray in fluid film or Eastwoods internal frame coating? I know once I use Fluid film I'll never have success with the internal frame coating or paint or anything since nothing will stick. Im new to learning about fluid film. What are your thoughts? Ive got a great truck here and want to keep it that way. 

 

Thanks all! And thanks for having me on the message board. Ive been lurking awhile and learning what to shop for. Now I have one and look forward to learning even more and helping others as I learn.

 

Ryan

[riverbanks]

Fluid film is fine,short lived thou,like every year in high spray(roadspray)areas it will need to be reapplied,but we'll worth the minimal cost

[riverbanks]

Fluid film is fine,short lived thou,like every year in high spray(roadspray)areas it will need to be reapplied,but we'll worth the minimal cost

[riverbanks]

Woops,hit the button twice

[aseibel]

I use fluid film every spring to coat my plow. Keeps it looking great the rest of the year with no rust.

but I don't have any desire to spray that on the truck frame. I'm sure you could use it in the cavities and it would be better than nothing. But I think there are other products that are more designed to "mist" into cavities like that. Fluid film is pretty thick. 

 

If you search around, you can see plenty of arguments about when and where to use fluid film.

[newdude]

Fluid Film will eat the frame wax (if there is any still on the frame). 

[C/K Man]

These frames are dipped, so there isn't too much concern of them rusting on the inside.  The wax coating can be damaged on the outside, but it can be easily touched up.  The factory coating is available in aerosol cans.  newdude raises a good point, some 'anti-rust' coatings can damage the factory coating.  I use the factory coating, and touch it up from time to time.  This TSB has information on the frame coating:

 

https://gm.oemdtc.com/7624/service-update-14002-underbody-appearance-2014-chevrolet-silverado-gmc-sierra

[HoosierZ]

I used Noxudol 700 cavity wax to hopefully protect my 2016. I sprayed it inside my doors, rockers, fenders, bedsides, tailgate, and cab floor braces. Basically, anywhere there’s pinch welds, spot welds, or cavities where water and salt can eat away panels from the inside. Time will tell if it works, but for less than $100 for six cans, it’s worth trying. Doing nothing didn’t work out too well for my 2008 Silverado that had a rocker panel rusted through at 8 yrs/ 90k miles. I bought the Noxudol on Amazon. 

[Flyin-Ryan]

Thanks all for the information. Any recommendations for treating the inside of the doors or rockers/cab corner? Or should I just do nothing and instead just keep the under carriage clean?