Free-All spreads deep into rusted or frozen parts, freeing them in seconds with ease! Brings any frozen, rust-covered parts back to life. Penetrates rust, scale and corrosion to free parts and assemblies INSTANTLY! Loosens red and white lead, tar, grease, carbon and graphite deposits. No more torching, drilling, hammering or chiseling. Specially formulated, rust eating agent is ideal for plumbing, automotive, marine and general industrial applications. Will free up all threaded pipe connections, rusted machine screws, bolts, nuts, clamps for mufflers and tail pipes, pillow blocks, universal joints, locks, etc. Contains NO silicones, making it safe in paint and shop environments. 11 ounce aerosol can.RE-12