As seen on Two Guys Garage on the SPEED channel: Working on an old project and getting held up by rusted nuts and bolts? CRC FREEZE-OFF Super Penetrant breaks through the toughest rust and corrosion. Spray FREEZE-OFF on the rusted part and it immediately drops the temperature of the area in direct contact with the spray. This freeze-shock action cracks the rust allowing for deeper penetration. FREEZE-OFF dissolves rust, gums and corrosion, displaces water and its lubricating film helps prevent future corrosion.