Plews Penetrating Oil

Plews Penetrating Oil: Over a Century of Lubrication Know-How

When a seized bolt or rust-frozen hinge stands between you and getting the job done, the penetrating oil you reach for matters. Plews brings more than a century of lubrication engineering to that moment — and it shows in the performance of their penetrating oil lineup.

Plews Manufacturing was founded in 1927 with a core focus on oil cans and lubrication tools for the railroad industry. As transportation evolved from trains to automobiles, so did Plews, expanding its product range to serve mechanics, enthusiasts, and industrial professionals alike. Today, operating as Plews & Edelmann, the company is recognized across the automotive aftermarket, industrial, marine, and hardware sectors as a trusted source for lubricants, oils, and sprays.

The Science Behind Plews Penetrating Oil

Penetrating oil works by leveraging low viscosity to seep into the microscopic gaps between corroded or seized metal surfaces — the threads of a rusted bolt, the pivot of a frozen hinge, or the joint of a stuck fitting. Plews delivers this capability through its well-established UltraLube product line, a professional-grade series of lubricants and penetrants engineered to break the bond of rust and corrosion quickly and effectively.

What sets Plews apart in the penetrating oil space is its dual-purpose engineering philosophy. The Ultra Lube Multipurpose Lubricant and Penetrant (such as the 10445) is formulated not just to loosen rusted parts, but to provide lasting lubrication after penetration — reducing the chance of future seizing on hinges, rollers, and threaded fasteners. It's equally at home in automotive, home maintenance, and industrial applications.

Plews has also been a pioneer in eco-conscious lubrication. The brand introduced the LubriMatic Green line — bio-based, biodegradable penetrants and lubricants formulated from renewable vegetable oils grown in the United States. These products offer a meaningful advantage: they are less likely to thin out at high temperatures, run cleaner, and carry none of the harsh chemical odors common to traditional petroleum-based penetrants.

Why Choose Plews for Penetrating Oil?

• Deep industry heritage: Plews has built lubrication products for over a century, spanning automotive, industrial, marine, and heavy-duty markets.
• Dual-action formula: UltraLube penetrants are engineered to loosen corrosion and leave behind lasting lubrication — two jobs in one application.
• Eco-friendly options: The LubriMatic Green line brings bio-based, biodegradable penetrant technology to users who want performance without the environmental footprint of conventional oils.
• Wide application range: Suitable for rusted nuts and bolts, stuck hinges, rollers, and dozens of other seized or corroded mechanical connections.
• Trusted by professionals: Plews & Edelmann products are sold to automotive aftermarket retailers, industrial distributors, hardware stores, and marine suppliers nationwide.

Whether you're a weekend mechanic wrestling with a stubborn exhaust bolt or a professional technician tackling a daily stream of corroded fasteners, Plews penetrating oil delivers the deep-penetrating, rust-busting performance you need. Explore the full Plews brand catalog or browse all penetrating oil products to find the right solution for your application.