Trådändningslim

Trådändningslim, often referred to as thread locker or thread sealant, is a liquid or semi-liquid substance used to secure threaded fasteners, such as bolts and screws, against loosening caused by vibration and shock. It works by filling the microscopic gaps between the mating threads of the fastener and the hole it is screwed into. When exposed to air, a chemical reaction, typically an anaerobic curing process, causes the liquid to harden into a solid plastic that locks the threads together.

The primary function of trådändningslim is to prevent loosening. While mechanical fasteners like lock washers or self-locking nuts can also serve this purpose, thread lockers offer a more reliable and complete solution, especially in applications with high vibration or stress. They also provide a degree of sealing, preventing leakage of fluids or gases through the threaded joint.

Trådändningslim comes in various strengths, ranging from low-strength, which allows for easy disassembly with standard tools, to high-strength, which requires heat or significant force to break apart. Different formulations are also available, offering varying levels of viscosity, temperature resistance, and cure speed. The selection of the appropriate trådändningslim depends on the specific application requirements, such as the size of the fastener, the expected operating environment, and the desired ease of disassembly. Proper surface preparation of the threads is crucial for optimal performance.