Customer Login Home Reps & Distributors Career Opportunities contact
APM HEXSEAL. Since 1947... The world's most hostile environments are our proving grounds.

Technical References & Articles

White Papers

Technical References

Technical Articles

Unsealed electromechanical switches and circuit breakers offer limited environmental protection against harsh contamination penetration. The switches and breakers might be on oil platforms in the Gulf of Mexico, the Permian Basin, the Bakken Shale, petrochemical plants, refineries in Louisiana, in the Arctic or in the Antarctic. No matter the location, care must be taken with this sensitive equipment...
Appearing on Upstream Pumping Solutions Magazine as of Spring 2012. VIEW PDF

Wherever secure sealing under pressure (as well as fastening) has been required, dry, embedded 0-ring sealing fastener technology (with optional thread locking) versus wet, liquid adhesive thread locking have been the choices for pump manufacturers and users for more than half a century...
Appearing in Pumps & Systems Magazine as of April 2012. VIEW PDF

When gas or liquid are under pressure, system fasteners should be sealed to prevent leakage. This is true even for fasteners that are not under pressure, but where hostile environments such as water, gas, dust, lubricants, cleaning solvents, etc. are present and could penetrate past threads and leak onto the internal mechanism/operating area creating havoc. Fastener users have a number of sealing options to effectively block these contaminants and to contain fluids under pressure (internal/external) ...
Appearing on the Design News website as of December 30, 2008. VIEW PDF


Not every unsealed or sealed panel switch, potentiometer, or circuit breaker needs environmental exposure protection from adverse conditions on the ground, in the air, or on or under the water. But for those controls that must operate where dust, dirt, moisture, water, lubricants, fungus, snow, ice and extreme temperatures prevail ...
As appears in Equipment Protection Magazine. VIEW PDF

SURVIVING HOSTILE CONTROL SYSTEM ENVIRONMENTS ... Control systems are often subjected to a variety of hostile environments. As appeared in EDN Products Edition - Technology Focus. VIEW PDF

"DESIGNER" SEALS KEEP SWITCHES CLEAN ... Custom interactive dynamic seals guard switches and other components from extreme environments while transmitting mechanical motion. As appeared in MACHINE DESIGN. VIEW PDF

EXTERNAL SWITCH SEALS, BOOTS PROVIDE PLETHORA OF ADVANTAGES ... Boots are often used with both unsealed and internally-sealed switches to protect behind-panel components from leakage around the switch bezel and through the panel cutout. As appeared in ELECTRONIC PRODUCTS & TECHNOLOGY. VIEW PDF

PROTECTING AND PROLONGING SWITCH LIFE ... In a wide range of environmentally hostile industrial, commercial and military applications electromechanical switches are subject to the ravages of dust, dirt, grease, lubricants, cleaning solvents, rain, moist air, wash-downs and salt air/water. As appeared in ELECTRONIC PRODUCTS & TECHNOLOGY. VIEW PDF

Proven Protection for Medical Electronics. Switch and circuit breaker environmental sealing boots prolong life and reliability...
As appeared in MACHINE DESIGN's Medical Technology Report. VIEW PDF


About APM's 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 as meeting applicable Canadian and USA enclosure protection standards.

About APM's Self-Sealing Fastener Division:
The APM line of high-pressure, reusable, self-sealing fasteners includes self-sealing screws, self-sealing nuts, self-sealing bolts, self-sealing rivets, and self-sealing washers, all designed to seal in/out air, water, lubricants and other liquid or gaseous contaminants. This sealing hardware is available in Imperial (inch) and metric sizes with various sealing material and thread-locking options, most of which are UL Recognized Components for Canada and the USA.

  Home : Product Lines : Tech Info and FAQs : About APM : Find Reps & Distributors : Contact Us : Site Map  

Switch & Circuit Breaker Boots

Switch & Potentiometer Boots

IQ Series Boots

Circuit Breaker Boots

Custom Elastomeric Molding

Colorizing Lamp Filters

Self-Sealing Fasteners & Washers

SEELSKREW® Self-Sealing Screws

SEELBOLT® Self-Sealing Bolts

SEELNUT® Self-Sealing Nuts

SEELRIVET® Self-Sealing Rivets

SEELOC® WASHER Self-Sealing & Self-Locking Washers

Contact Us

Toll Free: 800.498.9034

Follow us on Facebook

Join our group on LinkedIn

Follow us on Twitter

  HEXSEAL®, SEELSKREW®. SEELBOLT®, SEELNUT®, SEELRIVET®, SEELOC® are registered trademarks of APM Corp.  
website design by gravitate by design © 2011 APM Corp. All Rights Reserved.