Case Study: Reducing NVH in Interior Door Handles
Background
A prominent Automotive supplier came to Nye in search of a lubricant that would be compatible with the chrome finish on the interior door handles of their new pickup truck design. If not properly lubricated, components within the door handle experience friction during use, which creates audible vibrations that passengers may find off-putting. The supplier needed a lubricant to control the motion of the door handle to reduce the noise, vibration, and harshness emitted during use.
Challenge
- Extend the life of door handle components.
- Control motion to reduce noise, vibration, and harshness.
- Exhibit chrome compatibility.
Solution
Uniflor™ 8172
A PTFE thickened, light viscosity, completely fluorinated grease.
- Exceptional wide service temperature from -45 to 225°C
- Compatible with chrome and most plastics and elastomers
- Light viscosity provides a quality feel to eliminate backlash
- Specifications: GM: 9985880
| Product | Chemistry | Temp Range (°C) | Oil Separation (24 hrs @ 100°C) | Evaporation (24 hrs @ 150°C) |
|---|---|---|---|---|
| UNIFLOR 8172 | PFPE/PTFE | -45 to 225 | 3.8% | 0.23% |
Results
The Automotive supplier completed compatibility and durability testing to validate Uniflor™ 8172 for their application. Uniflor™ 8172 passed all customer testing and improved the life of the door handle spring while also reducing noise emissions. The Automotive supplier ultimately selected Uniflor™ 8172 to lubricate the interior door handle of their new truck design and remain satisfied with its performance.
