The seal shown in Fig. 14.2 is a relatively simple design; most automotive seals are more complex. Dust lips are often used to keep outside contaminants away from the oil lip seals; such seals thus have undercuts that make demolding more difficult. Fluoroelastomer compounds used for such undercut shapes must have reasonably high elongation at break at molding temperatures to avoid tearing the part during demolding. The metal insert is often U-shaped, and stock may be molded to form a thin layer over the outside of the insert. Since both compression and injection molding methods are used, suppliers of fluoroelastomers for shaft-seal applications often must provide different versions of the same polymer composition-medium to high viscosity for compression molding, and low to medium viscosity for injection molding. Different precompounds may be necessary to accommodate relatively long compression-molding times at low temperature and very short injection-molding times at high temperature.

-20~180

Advantages of Silicone and Rubber Gaskets

In conclusion, the auto valve cover gasket is not just a mere accessory; it's a guardian of your engine's health. Its role in sealing, pressure maintenance, and preventing oil leaks cannot be overstated. As such, it's important to understand its importance and ensure its proper care and maintenance. Remember, prevention is always better than cure, especially when it comes to the complex machinery that keeps your vehicle running smoothly.

Replacing the sump gasket

The Versatility of a 1 Inch Rubber Gasket