Rust treatment for inside a tube

[Veloo]

Recently acquired this (old) Tacx T3050 stand for pretty cheap.

The upper tube slides into the lower tube. The lower had a bit of inside rust which transferred to the chrome plating on the outside of the upper tube. Got it off the upper with CLR but it'll probably come back since it does make contact and I plan on using this for cleaning.

What's a good rust treatment for the inside of the lower tube?
Guessing it won't be easy to get the whole length coated and the sliding friction of the two tubes will probably scrape it off over time.

Preferably something that's "dry" and won't inhibit the sliding.

[yinzerniner]

Originally Posted by Veloo

Recently acquired this (old) Tacx T3050 stand for pretty cheap.

The upper tube slides into the lower tube. The lower had a bit of inside rust which transferred to the chrome plating on the outside of the upper tube. Got it off the upper with CLR but it'll probably come back since it does make contact and I plan on using this for cleaning.

What's a good rust treatment for the inside of the lower tube?
Guessing it won't be easy to get the whole length coated and the sliding friction of the two tubes will probably scrape it off over time.

Preferably something that's "dry" and won't inhibit the sliding.

Cap and fill with Evaporust. Super cheap, reusable, and works like a charm.
Then coat both tubes with fluid film.

[Spaghetti Legs]

Boeshield is good rust protectant and will lubricate as well.If there is a significant amount of rust, I like the Evaporust idea first as well.

[tellyho]

Any marine engine fog will do the job nicely. $5 at auto parts store.

[NHAero]

Going OT rogue here - what about for a small rust perforation on an infrequently used motor vehicle?

[NHAero]

Originally Posted by yinzerniner

Cap and fill with Evaporust. Super cheap, reusable, and works like a charm.
Then coat both tubes with fluid film.

What's the mechanism used by this product Evapo Rust?

[KevinC]

Frame saver
Boeshield
Boiled linseed oil