Cover it. Seal it. Protect it.
APM Hexseal has been designing self-sealing boots and fasteners for more than 70 years. We specialize in developing and manufacturing sealing solutions that offer superior performance in even the harshest environments.
Circuit Breaker/Rocker Boots
Circuit breakers perform a very valuable role in all sorts of control systems, protecting equipment from short circuits and electrical overloads. APM Hexseal’s lever actuated circuit breaker boots are designed to protect these critical devices, extending breaker life-spans and in turn helping to ensure long-term security of the system as a whole.
APM Hexseal holds the notable distinction of having designed and patented the very first self-sealing fasteners, which became our trademarked Seelskrews® and Seelbolts®. In addition to fastening, our self-sealing screws and bolts offer a reliable and reusable seal, preventing (or containing!) contamination from dust, air, water, lubricants and other liquid or gaseous substances.
APM Hexseal’s Seelnuts® are made from high quality rubber, molded into a specially shaped cavity in the nut itself. With threads molded directly into the rubber, these self-sealing nuts form a positive seal along the threaded section of the Seelnut, as well as with the contact surface, removing the need for gaskets, sealing
compounds or extra surface preparation. Seelnuts install just like conventional nuts, and are designed for use with ordinary screws, bolts and studs, making them a quick and easy sealing option for all sorts of applications, especially where there is a need to withstand high internal or external pressures. Seelnuts are also reusable, meaning that they can be easily removed and reapplied, reestablishing the same reliable seal when torqued.
APM Hexseal’s Seeloc® Washers consist of molded silicone rubber bonded to specially formed stainless steel washers. Designed to be used in conjunction with conventional screws, bolts or studs, Seeloc Washers are a simple sealing solution that is ideal for all sorts of applications, especially where spray, vapors or wash-downs are present, or where there is concern of contamination from dust, oils or salt build-up. The silicone contact surface features a continuous ridge which, upon compression, creates a 360° sealing barrier around the periphery of the washer face. The silicone rubber also forms a seal under the head of the associated fastener and makes full vertical contact with the threads/shank, making for a complete, high-pressure seal unlike any other.