Forespar Storage Seal, Rust Inhibitors, Cable Lubricants, & PTFE Lubricants

Forespar MareLube™ & LanoCote: Marine-Grade PTFE Lubrication and Rust Protection

When saltwater, electrolytic corrosion, and extreme mechanical loads are constant threats, the lubricants and rust inhibitors you choose can make the difference between a vessel that performs flawlessly and one that fails at the worst possible moment. Forespar — a manufacturer with deep roots in marine engineering — approaches this challenge with a purpose-built line of synthetic lubricants and corrosion solutions that are as serious about chemistry as they are about seamanship. Their offerings in the broader Storage Seal, Rust Inhibitors, Cable Lubricants, & PTFE Lubricants category reflect decades of refinement for the specific demands of the marine environment.

The MareLube™ Family: PTFE at the Core

MareLube™ is Forespar's family of pure synthetic lubricants, each one specifically designed for the different applications a boat requires for proper maintenance — and all formulated with PTFE to work equally well in fresh or salt water, backed by ISO 9001 certification.

The flagship of the line is MareLube TEF45. It is a completely waterproof, tenacious synthetic grease containing 45% PTFE sub-micron size powder — the highest percentage PTFE available anywhere — and it won't wash away in fresh water, salt water, or detergents. That chemistry has real-world consequences: TEF45 lubricates and is designed to mechanically plate metal surfaces with a PTFE film to provide maximum protection against friction, wear, and corrosion, while the combination enhances load capacity and gives TEF45 an extremely wide operating temperature range.

This makes TEF45 perfect for heavy loads and bi-metal anti-corrosion applications like turnbuckles, spar fittings, and motor lower units. TEF45 seals out water and electrolytes from entering the small gaps around fasteners and between metals — with no volatile solvents, silicones, or petroleum to evaporate, it prevents the voids and gaps that electrolytes would be drawn into, forming the galvanic microcells that cause long-term corrosion.

For marine plumbing applications, Forespar also offers Liquid MareLube. Designed for valves where access is difficult or convenience is desired, Liquid MareLube can simply be poured into the system through the valve tailpipe or hose and activated by working the valve handle — it is specially formulated using advanced PTFE lubrication technology to keep marine valve seals and balls working smoothly. Notably, this is a truly readily biodegradable and biorenewable liquid lubricant, blended from high-quality biodegradable USA-grown vegetable oils treated with the most effective anti-oxidants and PTFE micropowder. It is also NSF/USDA H-1 registered, giving it full acceptability for use in all areas where incidental food or water contact may occur.

LanoCote™: Rust and Corrosion Defense

Complementing the MareLube line, Forespar's LanoCote addresses rust and corrosion inhibition directly. LanoCote works on five basic principles: it displaces water, absorbs corrosion, forms a moisture barrier, penetrates deeply, and provides high lubricity. This multi-mechanism approach makes it a go-to solution for storage protection and ongoing corrosion management on metal hardware, fasteners, and fittings throughout a vessel.

Why Forespar Stands Apart in This Category

What separates Forespar's lubricant and rust-inhibitor products from generic alternatives is the marine-first engineering philosophy behind them. Their formulas contain no volatile solvents, silicones, or petroleum to evaporate, meaning they will not cold flow or dry out — a critical advantage for seasonal storage and year-round protection. The MareLube TEF45 operating temperature range spans 20°F to 350°F, with a dry film range of -100°F to 600°F, making it equally capable in arctic anchorages and tropical cruising grounds. For boaters who demand chemistry that can match the environment, Forespar's PTFE and corrosion-protection products deliver proven, certified performance.