Re: How well does krylon prevent rust??
Corrosion COntrol FACT:
No paint will prevent corrosion in any alloy. Your rifle's actuion and barrel are an allow as are teh parts. Unless the part is made of pure steel, or as it is called, mild steel, it will corrode internally as dissimiliar metal corrosion. You see this on aluminum and SS parts over time as a grey powder, or if the part breaks a greany pattern in the break that looks like rust.
If you do the prep correctly the surface of your metals will not corrode as you have made a total seal over them.
Remember, corrosion is a by product of water or a liquid and a simple electrolysis.
Painting or anything else will work very well so long as the coating is more noble than the metal it is covering(the<span style="font-style: italic">active</span> part that is attacked and shows the rust)
That's a ssimple and down and dirty as I can describe it. Some of you will no doubt be familiar with Galvanic prosesses, Knife edge process, Temperature process and the other corrosion types.