Chassis tubes inner surfaces, treatment of:

The chassis tubes on my car are in good shape. What about inside the tubes? What would be the best way to protect from corrosion from within?

 

If I was gonna do anything, I'd use Waxoyl 120-4.

http://www.waxoyl.com/en/

 

In the UK we have a product known as Finnigans Waxoil which you warm up to turn it to a liquid,then with the plastic hose type lance which is roughly around 5mm in diameter with a nozzle which produces a 360 degree spray pattern, drill as required or use existing wherever possible 6mm holes and merrily spray it in till it starts dripping all over you! then with the plastic plugs provided systematically plug up all your holes. Job done! only thing is if you leave it on your drive on a hot day sods law say's that it will find somewhere for the excess to escape onto your lovely drive. but at the end of the day it's widely known as the best product over here.
BTW Don't Eastwoods do a similar system that they call 'rust encapsulator'?

Regards G.P.

 

Thank you G.P. I do remember fiinegans wax oil from my earlier days. As for the wax leaking out, makes a lovely pattern on a rainy day.

 

What do you think? worth the effort or not?