Case Study: Motion Control Grease for Sun Visors
Background
Interior automotive components often require a lubricant to reduce noise and control motion in order to improve the functionality and perceived quality of the design. An Automotive OEM approached one of Nye's affiliates with an aftermarket issue they were having with their sun visor design. The tight tolerances in the visor generated a great deal of friction between the sun visor bracket and the metal retaining cylinder and spring. In order to move the visor, passengers needed to exert excessive force which was causing premature wear to the plastic components. The tight tolerances were also creating a creaking noise that was unpleasant for the driver. The OEM needed a plastic-compatible grease to make the sun visor both easier and quieter to open.
Challenge
- Can Nye provide a grease that enables smooth, noise-free operation?
- Can Nye provide a plastic-compatible, odorless grease that will not migrate and can be dispensed by hand?
Solution
NyoGel® 774L
A silica thickened, light viscosity, synthetic hydrocarbon grease
- Light viscosity grease prevents wear in lightly loaded applications
- Compatible with most plastics and elastomers
- Good stay-in-place properties, low oil separation
- Odorless to accommodate proximity to driver
| Product | Chemistry | Temp Range |
Kinematic Viscosity (40°C) |
Oil Separation (24hrs @ 100°C) |
Evaporation (24hrs @ 100°C) |
|---|---|---|---|---|---|
| NYOGEL 774L | PAO/Silica | -40 to 120°C | 2003.62 cSt | 1.3% | 0.2% |
Results
Our affiliate recommended that the OEM try NyoGel® 774L, a light viscosity grease from our line of motion control greases. After applying a sample of the grease to the bracket/retaining spring of the sun visor, it required much less force to move and the creaking noise was eliminated. The affiliate was also able to provide NyoGel® 774L in a syringe for easy repairs and hand-held dispensing. The OEM was so satisfied with its performance that they issued a service bulletin to aftermarket dealerships recommending the use of NyoGel® 774L for their sun visor design.
