The design of the lip is crucial; its profile allows it to make optimal contact with the shaft, creating a seal that can accommodate the shaft's rotation. Some rotary lip seals also include a dust lip or exclusion barrier, which helps protect the primary sealing lip from contaminants such as dirt and debris.

A well-known example of agricultural seals is the USDA Organic seal. This certification assures consumers that the products are grown without synthetic fertilizers or pesticides, promoting environmental sustainability. Similarly, GlobalGAP (Good Agricultural Practices) certification ensures that farming practices adhere to safety, environmental, and social responsibility standards. These seals not only reflect the commitment of farmers to quality and safety but also enhance marketability, as consumers are increasingly seeking products that align with their values.