The Pitfalls of WD-40 on Heim Joints with PTFE Liners

The Pitfalls of WD-40 on Heim Joints with PTFE Liners

Heim joints, also known as rod ends, are crucial components in various mechanical systems, offering flexibility and durability. When equipped with PTFE (polytetrafluoroethylene) liners, heim joints provide low friction and excellent wear resistance. However, the application of WD-40, a popular multi-purpose lubricant, on heim joints with PTFE liners can have detrimental effects, undermining their intended performance.

Chemical Incompatibility

WD-40 is primarily a penetrating oil and water-displacing spray, containing solvents, mineral oil, and other additives. The chemical composition of WD-40 may not be compatible with the PTFE material in heim joint liners. PTFE is known for its inert nature, resisting chemical reactions. Introducing a foreign substance like WD-40 could compromise the integrity of the PTFE liner, leading to premature wear and reduced lifespan.

Loss of PTFE Effectiveness

PTFE liners in heim joints rely on their low-friction properties to provide smooth movement and reduce wear between metal components. WD-40, while effective in some applications, may not offer the same level of lubrication required for PTFE. Using WD-40 on heim joints could potentially displace or degrade the PTFE material, diminishing its ability to reduce friction effectively. This can result in increased wear on the joint and compromise its overall performance.

Attracting Contaminants

WD-40 has a tendency to attract dust, dirt, and other contaminants due to its sticky nature. When applied to heim joints with PTFE liners, this can lead to the accumulation of particles between the moving components. The presence of contaminants can exacerbate wear and tear, causing increased friction and potential damage to the PTFE liner.

Thinning of Lubricant

WD-40 is not a long-lasting lubricant and tends to evaporate over time. When used on heim joints with PTFE liners, the thinning of the lubricant can result in inadequate protection against friction. This can lead to metal-to-metal contact within the joint, causing accelerated wear and compromising the structural integrity of the assembly.

Conclusion

In conclusion, the use of WD-40 on heim joints with PTFE liners poses several risks that can negatively impact the performance and longevity of these critical components. The chemical incompatibility, loss of PTFE effectiveness, attraction of contaminants, and the thinning of lubricant all contribute to a scenario where WD-40 is not the ideal choice for maintaining heim joints with PTFE liners. It is crucial to choose a lubricant specifically designed for PTFE applications to ensure the optimal functioning and durability of these essential mechanical elements.

We always recommend the use of Tri Flow lubricant for all of our heim joints and spherical bearings.