Aemite LP-250F is a sealing compound that prevents seizing or galling at temperatures ranging from 350°F to 2987°F (-212°C to 1641°C). This compound consists of pure lead powder suspended in a non-volatile hydrocarbon vehicle that does not dry out. LP-250F is identical to LP-250, except that a pulpy filler is added to make LP-250F particularly suitable for coarse threads. This product is highly non-contaminative and is impervious to the effects of salt, water, steam, oils, ammonia, and hydrocarbons. LP-250F is only prohibited from use with pure oxygen and freon gases.
Prevents oxidation and corrosion, making it ideal for chemical plants and refineries.
Effective up to the melting point of surrounding metals, ensuring long-term protection.
Functions from -350°F to 2987°F, suitable for extreme conditions.
Tested up to 100,000 PSI for hydraulic fluid lines.
Forms a thin lead coat to reduce friction, easing assembly and
Contains a pulpy filler for enhanced sealing in loose-fitting or high-pressure coarse-threaded connections.
Too See Armite LP-250F (Filler) Hi-Temp Anti-Seize Compound technical data sheet (TDS) and the Armite LP-250F (Filler) Hi-Temp Anti-Seize Compound safety data sheet (SDS). Visit here
While both share the same lead-based high-temperature formula, LP-250F contains a pulpy filler that increases its viscosity and "body." This makes it specifically designed for coarse threads and applications where fitting tolerances are "liberal" (loose), as the filler helps bridge gaps and ensures a more robust seal and protective barrier.
Armite LP-250F offers one of the widest temperature ranges in the industry, remaining effective from -212°C to 1641°C (-350°F to 2987°F). It functions as an anti-seize even up to the melting point of the surrounding metals, ensuring that heavy industrial and aerospace hardware can always be disassembled.
LP-250F is the premier choice for coarse-threaded fasteners, boilers, refinery units, and steam or gas turbines. In aviation, it is used on heavy structural bolts and engine components where high pressure and extreme heat are present, and where a standard thin anti-seize might migrate out of coarser thread gaps.
Yes, because it contains 70% pure lead powder and a non-volatile filler, LP-250F acts as both a lubricant and a sealant. It is impervious to the effects of salt, water, steam, oils, and ammonia, and it forms a pressure-tight seal that is effective for equipment handling everything from high-pressure steam to liquid nitrogen.
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