Well i see often that manufacturers make claims like "such and such a claim is coated with chemical x to resist corrosion better than the leading brand". So i got bored yesterday and decided to take two links from my PC-69 (the chain was too long when i got it so i had to remove a few links). I submerged them entirely in a bag of water and after 28 hours i am surprised to say that there is indeed not very much rust. Some around the areas of movement as i suspected. Small specks of it especially around the pins. I also put two links of my old 7 speed KMC chain, this chain has at laset 50% more rust on it. Ide like to see if i can get two links of a wipperman chain. I know they say they have special corrosion resisting modifications or something, i want to see if it beats the PC69 at resisting the rust to merit its price which is double that of the PC69. Anybody care to try?