PB Blaster Penetrant Rust Remover, Automotive, Marine, Plumbing, 11oz

Penetrating lubricants loosen fasteners or bolts that are stuck or frozen in place so they can be removed or separated. These liquids seep into crevices or small spaces between threaded parts to release them. They can displace moisture and prevent corrosion between fasteners. Penetrating lubricants evaporate more quickly than other lubricants, so they are better used for short-term lubrication.