Kroil Original Aerokroil Penetrant - Case of 12

The Kroil Original Aerokroil Penetrant - Case of 12 is an industrial-strength penetrating oil intended to loosen rusted, seized, or frozen metal parts by working into very small threads, openings, and crevices. It is useful for marine maintenance, repair shops, machinery, and other applications where corrosion can make fasteners, shafts, pulleys, and mechanical assemblies difficult to disassemble.

The penetrant attacks corrosion, helps remove rust and carbon deposits, displaces moisture, and leaves lubrication behind after it reaches the affected area. The Aerokroil aerosol uses SprayTech delivery so the can can dispense from different angles, including upside down, which is useful around hard-to-reach hardware.

Penetrating oil works best when it has time to migrate into the corroded interface, so heavily seized parts may benefit from repeated application and dwell time before mechanical force is applied. It is a maintenance aid rather than a substitute for proper tools, safe disassembly practices, or replacement of hardware that is structurally damaged by corrosion.

• The low-viscosity penetrant works into threads, crevices, and small openings around seized metal parts.
• Attacking corrosion can make stubborn nuts, bolts, shafts, and pulleys easier to free.
• The formula helps protect and lubricate the treated area after penetration.
• SprayTech aerosol delivery can dispense from multiple orientations, including upside down.

There is more in our corrosion protection & lubricants.