May want to try stainless steel rotors, don't know how good they work, but won't rust.
Stainless Steel Brakes 23110AA1A Stainless Steel Brakes OEM Replacement Rotors - Free Shipping on All Orders @ JEGS

 

FYI, "Stainless Steel Brakes" (SSBC) is the name of the company, not what the rotors are made of. The company first made their name by re-manufacturing and selling Corvette calipers with s.s. sleeves, and grew from there. I put a set on one of my Vettes over 30 years ago, they've been around since 1975.
Those rotors you show are "stock replacement": Rotor - Stock Replacement Front
Does anybody even make s.s. rotors? Part of the brakes stopping power is how well the pads bite into the rotor. I can't imagine pads would grab s.s. very well, unless they had a sandpaper finish that wore to infinity.

 

The product I found was called Fluid Film - I'm not sure about placing it on the rotor, but it seems to be a great product for applying to anything else you might want to keep rust from getting to. Maybe a super light application on the center part of the rotor, then wipe it back off with a coffee filter - so it's extremely thin and won't spread while the car is in motion. I'd hate for it to get onto the biting part of the rotor - may not be able to stop then (yikes), or the pads only bite intermittently. Not good.

But as an all-round rust preventative, it seems to be pretty decent. Don't know how much it is, though. Their website says they sell to AutoZone, but I couldn't find anything on AZ's website.

 

A buddy of mine uses Fluid Film on the underside of his truck for winter protection. He swears by it for that use, but I don't know how long it would last on the rotors.

 

Why are you going to great lengths to over protect a replaceable part? Some surface rust on the outside or on the hub isn't going to affect brake performance at all. I dont see what your trying to accomplish here honestly.

 

I checked these guys out, and it seems the rotors are made from aluminum? Which is great for rust and weight, but wouldn't aluminum be too soft a metal for a brake rotor? Unless you use it for drag racing or something where you change out parts all the time - which I wouldn't. I may have to stick with my cheapos and just soak em in vinegar once a year or so. :/

 

I want the knowledge of being able to protect a very expensive part (Brembos aren't cheap) by using a cheap part as the experiment to test the theory. Of course the argument could be made that I don't need Brembo, etc. But at the end of the day, I'm the one who has to drive my ride - and I want what I want on it.

 

No they're not aluminum. See my response to Pete above, they're "stock replacement", which means conventional steel rotors.

 

Ah, my mistake - it's the calipers that are aluminum, not the rotors. :/

Disc Brake Kit Front - 4 Piston Comp R - Wheel kit only (pair)

 

Yeah, with aluminum rotors, you'd be replacing them probably every week!