Basically, a threadlocker is an adhesive compound that is used to lock threaded connections and sometimes serves as a hard-setting sealant. Across industries, including homeowners and do-it-yourself people, there are millions of connections created every year that are threaded. They also tend to loosen with the time of use and thus, they need to be chemically or mechanically locked. The primary causes of loosening, which involves the loss of clamp force, include load, vibration and corrosion.
Threadlockers are utilized in many cases as substitutes for traditional mechanical washers and fasteners. Most often, they outdo the performance of mechanical solutions. Chemically, a threadlocker is an anaerobic epoxy that makes a strong bond between opposing threads and fills any existing surface imperfections which lock the threads perfectly in place. Anaerobic means the compound cures in the absence of oxygen which is not possible in sealed threads. There are various types of threadlockers that range from general-purpose to specific types that are used for specific applications. A great threadlocker usually has the following properties:
● Vibration resistance
● Corrosion resistance
● Anticipated load resistance
● Excellent cure time at room temperature
● Great consistency for easy and even application
● Chemically compatible with other solvents, as needed
Common applications of threadlockers
With their flexibility, threadlockers are commonly used in a wide range of applications, from residential, commercial, to industrial uses. These include oil and gas drilling, gas line assemblies, aerospace assemblies, water pipelines, automotive maintenance, and horizontal directional drilling.
When to use a threadlocker
The use of a threadlocker is highly advised when a threaded fastener will be expecting vibrations or dynamic loads. In situations where threaded assemblies are seen to compromise the function and quality of the joints that can cause wear, corrosion, and joint failure, the use of threadlockers is strongly advised.
Finally, in terms of application, threadlockers are easy to use in just four steps. First, ensure that the surfaces are clean before applying the compound. Next, choose the right type for the application. Third, apply it evenly on the threaded contact surfaces where the threads have to be joined. Last, assemble the fastener as per recommended clamp force and let it cure at room temperature, following the manufacturer's manual to know the curing time.
Comments