Penetrants

Knock'er Loose®

A low-viscosity, industrial-strength penetrant that rapidly frees seized, rusted, or frozen fasteners. Quickly permeates rust, scale, gum, grease, and corrosion to a movement without the need for heat or extra force. Ideal for maintenance crews who need fast, reliable performance. Available across all 50 states (low VOC).

Best For

Freeing rusted, seized, or corroded fasteners.

Knock'er Loose® Plus

An advanced penetrant that combines industrial-strength solvents with freezing shock action. Rapidly lowers the temperature of the treated surface, cracking rust and corrosion to drive deeper penetration. Ideal for freeing fuel lines, brake lines, or any fasteners where using a torch is unsafe or not permitted.

Best For

Fasteners in fuel and brake lines or no-flame zones.