Finish Line Chill Zone 6oz Spray
Chill Zone gives your rusted bike components a second chance at life. A special refrigerant freezes metal to create micro-cracks in the rust that enables a penetrating agent to break it down and flush it out. Chill Zone helps rusted parts regain full functionality and delivers a rust-inhibiting lubricant to prevent further corrosion.
Simply spray the rusted part for 10 to 20 seconds, and wait 90 seconds for the chemical agents to wick and break down the rust from your parts. Finish line recommends letting Chill Zone sit for at least 5 minutes for severe rust and extreme corrosion to maximize the cleaning effect.
If you've ever dealt with a frozen seat post, then you know how frustrating it can be. I've used compressed air turned upside down before to great effect. I find that the contracting quality of the cold spray is probably more effective at breaking a stuck seat loose than the "microcrack" technology they describe, but there's always lube involved. So this give you both in one.