K2 Frame Rust - Metal Experts Please Step In

[LS Powah]

Been looking for a 2014-16 Silverado/Sierra.  I see lots of the frame and Kframe rust that we all talk about here; so much more frame rust than my very well used 99 Tahoe...just crazy.  It appears to be surface rust, and I understand that in some newer bridge work, they allow a rust patina to form and that the rust patina has the effect of "protecting" the steel by protecting the zinc layer underneath the rust (weathering steel).  I also understand the three ways to "zinc" steel (zinc paint [good], metalize [better] and galvanize [best]) Lastly, I have read most all the wax, Daubert Nox, TSB 14002A, and similar threads.

 

Question 1: Has anyone tried using a rust converter (to primer) with any success on a K2 frame?  I have used those before on receiver hitches etc with excellent results. 

Question 2: If one were to apply a rust converter, would something like the Vaper 19419 Red Spot Spray Non-Aerosol Sprayer http://a.co/f2r2SrG be a good choice?  or use an airbrush?  

Question 3:  Since the Toyota Tacoma frame recall, is the collective "we" just overly paranoid about frame rust?

 

Thanks!

[Buckshot556]

I've been touching up my frame rust with permatex rust converter spray followed by black frame spray paint and finally the Daubert product. Results are ok.  My 1 year old truck needs more rust maintenance than my 10 year old wrangler

[duquephart]

Just buy new every year or two. Probably what they want.

[Donstar]

My 15 has no signs of premature rust.  It also doesn't appear to be a wax type coating that  I often read about on this forum.  OP, keep looking and no need to settle for a rusty vehicle.