O-rings are still one of the most suitable sealing options, and they perform admirably well in many applications. Hobby, workshop or garage, anyone who tinkers from time to time cannot do without a set of those.
The big advantage of an o-ring, compared to a normal, flat gasket, is its higher flexibility, resulting in a better seal with a much lower risk of leaks.
Did you know that NBR (nitrile-buradiene rubber) is specially designed for use in motorcycles and cars? The material is resistant to acid, oil, petrol and heat. You see, it's not surprising that you'd find NBR o-rings on our site.