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APM Hexseal

APM Hexseal


APM Hexseal was founded in 1947 with the mission to develop and manufacture environmental sealing solutions to protect and prolong the life of electromechanical switches and circuit breakers. APM’s sealing boots are designed to protect your switches and potentiometers from hostile environments without compromising, or interfering with, the unit’s basic operation.

Milton Morse, a self taught engineer and innovator who designed the original sealing switch “boot” — a molded covering that protected both toggle switches and mounting panels from being infiltrated by liquids and gases of all kinds.

More than 50 million APM Hexseal boots have been produced, in a wide variety of types and sizes, for military, commercial and industrial applications throughout the world.

APM Hexseal is the prime supplier for the boating industry, beverage dispensing machinery, combat equipment of all kinds, off-road vehicles and many more

Each seal is made from tough, high tear-strength elastomer resistant to most chemicals, lubricants, acids and solvents. And each remains flexible over a wide operating temperature range ... with many units rated at -94°F to +400°F.

Most toggle, pushbutton and rotary shaft models feature a molded-in mounting nut, thus serving as both a reliable seal and mechanical mounting

APM Hexseal invented and patented pre-assembled self-sealing fasteners designed to provide both fastening and sealing integrity in a single unit. Their design features a resilient O-ring held captive in a precision-engineered groove under the fastener head. This combination of precise groove geometry and O-ring characteristics results in an absolute seal regardless of surface finish, while still providing full metal-to-metal contact.

Made in the U.S.A., APM Hexseal self-sealing fasteners are available in standard and metric thread sizes. The integral seal can be formulated for compatibility with a wide range of gases and liquids as it represents a superior sealing alternative to sealing compounds, tape, chemical coatings, and deformable washers that attempt to seal the threadform.

Vibration-resistant and re-usable, SEELSKREWS® , SEELBOLTS® , and SEELNUTS® can withstand internal/external pressures up to 6,000 psi/vacuum at temperatures from -160°F to +500°F.

A Company Worth Switching To