Modern engine oils, such as the current SG classification for gasoline engines, contain a large fraction of additives, many of which are detrimental to fluoroelastomers. The primary functions of oil-additive packages are to protect metal parts, avoid deposits in the engine, minimize oil degradation, and adjust fluid viscosity. Little attention has been paid to avoiding damage to rubber seals. Instead, elastomer producers have been expected to provide new, higher-performing products at no increased cost to auto manufacturers. Among the additives with moieties that may attack fluoroelastomers at high temperature are detergents (phenolates), dispersants (succinimides, alkylphenol amines), and antioxidants (amines, sulfides, hindered phenols).4 Many of these components are multifunctional, containing phenol or amine groups that can dehydrofluorinate and crosslink VDF-containing fluoroelastomers, leading to loss of elongation and eventual embrittlement. However, the rate and extent of reactions with seals are affected by many factors, including whether air is present in the system. When oil is exposed to air at high temperature, additives may undergo considerable changes. For example, a significant fraction of amines may be oxidized to amides, which have little effect on fluoroelastomers.5
- The Importance of the LS3 Valve Cover Gasket A Critical Component in Engine Performance
HMA - It can be modified for applications with large chemical exposure and hard vacuums.
- One common issue associated with a faulty valve cover gasket is oil leakage. As the gasket ages or becomes damaged, it can crack or shrink, allowing oil to escape. This not only results in a messy engine compartment but also leads to a loss of lubricant, which can cause increased wear on engine parts and potentially lead to more severe damage.
How are Oil Seals made?
• Total eccentricity, etc.
For more detailed information, please see the following:Oil Seal Materials
- Rectangular rubber gaskets are available in a wide range of sizes and shapes to suit different applications. The size of the gasket is typically specified by its inner diameter (ID), outer diameter (OD), and thickness The size of the gasket is typically specified by its inner diameter (ID), outer diameter (OD), and thickness
The size of the gasket is typically specified by its inner diameter (ID), outer diameter (OD), and thickness The size of the gasket is typically specified by its inner diameter (ID), outer diameter (OD), and thickness
rectangular rubber gasket. The shape of the gasket can vary depending on the application, but common shapes include straight-sided, concave, convex, and angle-cut gaskets.
- Sealing Material: The material used in the seal lip should be resistant to the operating temperature range, chemicals, lubricants, and pressures in your application.
- Oil seals prevent accumulation of dirt in the machine.
- There are several benefits to using lip seal gaskets in various applications
3. Dust and debris are common reasons for oil seal failure.
- But it's not just about performance