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 in hostile environmental condi......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 in hostile environmental conditions worldwide. Initially for the military and subsequently for the industrial and commercial marketplace. This focused effort resulted in the development of an extensive line of standard silicone sealing boots that mate with the vast majority of switches, breakers, encoders, potentiometers & many other rotating devices found today throughout the world Other complimentary sealing products were also developed and patented including a complete line of reusable self-sealing and optional locking fasteners and silicone colorizing incandescent lamp filters that transmit colors for instrument panels and lighted pushbutton switches Our Custom Molding Department specializes in designing and manufacturing dynamic sealing solutions using a wide range of elastomeric materials and with metal-to-rubber bonding when required. EMI/RFI suppression materials are also offered in our standard and custom products. APM specializes in FAST-TRACK prototyping to production About APMs Sealing Boots Division: The Electronics Division of APM HEXSEAL develops and manufactures environmental protection sealing components for controls that are mounted on switches, potentiometers, encoders, and circuit breakers. Using advanced elastomer molding technology, a broad range of sealing boots are produced to match most controls manufactures’ standard part numbers. Most are IP66/68 ingress protection rated and UL recognized. About APMs Self-Sealing Fastener Division: The APM line of high-pressure, reusable, self-sealing fasteners includes self-sealing screws, self-sealing locking nuts, self-sealing locking bolts, self-sealing rivets, and self-sealing washers all designed to seal in/out air, water, lubricants and other liquid or gaseous contaminants.