Manufacturing News

Mar
24

How To by Hernon: Guide to Threadlocker Strengths

By Hernon Manufacturing
 


       Guide to Threadlocker Strengths By Hernon Manufacturing


Many adhesive amateurs are intimidated by the prospect of misjudging the strength needed for an adhesive joint and instinctively request the strongest bond every time. Don’t make this mistake. Remember that adhesives, just like other tools, offer rewards when you use the best tool for the job. For example: using an adhesive with moderate strength will allow the end user or repair technicians to disassemble your product which can be an important feature and may add value to your design. The threadlocker sub-industry has created color coded strength indicators to guide users to the best choice for their specific application. These colors are often found on the bottle and usually the adhesive itself will be colored as well.

Purple Color: Represents solutions designed to reduce loosening due to normal use and vibrations. Curing results in a low strength bond that improves fastener holds while still being easily removable with hand tools.

Blue Color: Represents solutions designed to fill gaps between substrates and threads creating a single solid assembly that will hold its grip under load. Curing results in a medium strength bond removable by hand tools.

Red Color: Represents solutions designed to permanently seal fasteners in place against high stress and temperature. Curing results in a high strength bond NOT removable by hand tools.

Green Color: Represents low viscosity wicking solutions designed to penetrate preassembled fasteners, and connectors where disassembly is not an option. Curing results in a strong bond removable using a combination of localized heat and hand tools.

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