- Another important benefit of the A7RTC spark plug is its long lifespan. This spark plug is made from high-quality materials that are designed to withstand the harsh conditions inside your engine. As a result, the A7RTC spark plug can last for a long time, providing reliable performance and ignition for your vehicle.
VMQ, also known as silicone, is also used for oil seals, but this is less common because the mechanical strength of VMQ is low and this material has poor wear-resistance This makes it less suitable for dynamic applications, but it can withstand fairly low and high temperatures from -60 °C to 200 °C. Many types of VMQ are also suitable for contact with pharmaceutical and food products, so VMQ is an option worth considering. VMQ oil seals are usually available on request.

spark plug factory. Spark plugs undergo testing for resistance, durability, thermal performance, and overall functionality before they are approved for use in vehicles.
PTFE Oil Seals - A relatively new and exciting oil seal, the use of polytetrafluoroethylene means that they can withstand dry or unlubricated operations. With a massive thermal range of -130ºC to +200ºC and a strong resistance to chemicals, they are considered to be the future of rotary shaft seals.
Seals, including oil seals, have undergone a great development in recent years and are totally unlike the original product. PTFE has taken over the oil seals market for modern engines mainly because traditional oil seals started causing more and more problems. Such as evaporation of chemical plasticisers from the elastomeric material, which eventually caused engine oil leakage. Now, the focus is more on durability and frequency of servicing.
How are they used?

The interaction of the integrated seals with the shaft follows the dynamics of the PTFE seals. Often an additional dust seal (rubber lip or felt strip) provides an effective barrier against contaminating particles.
Oil seal vs. mechanical seal is not always an easy decision. In some cases, one is the obvious choice because you are replacing a worn out seal with the same type. But in other situations, either type would work and the question is which will enhance productivity the most. At Abbey Seals, we have ample experience with a full range of seal types. We are happy to discuss the specifics of your application and advise you on the optimum type of seal for your equipment. The decision between a rotary shaft or oil seal vs. mechanical seal involves many factors, and we are here to help you make the best choice for your specific needs.
Name Type
(type code) Shape Features
No. Code and number Example ① Seal type code (*)
What are oil seals?
Dynamic seals called bearing isolators are used to shield bearings from external impurities. They are revolving (rotor) and stationary (stator) elements. O-rings or strong seals are used in some bearing isolators, while they are constructed like labyrinths in others.
Viton (Fluorocarbon)
Polyacrylate oil seals are a perfect compromise between quality and cost. They perform well with high temperatures and chemicals, but not as well as Viton oil seals. Polyacrylate has a temperature range of -25 degrees Fahrenheit to 300 degrees Fahrenheit. Due to their outstanding resistance to hot oil and oxidation, they are commonly used in automobile transmissions and hoses; however, they are also used for shaft seals, gaskets, and o-rings.