"create a seal" is a correct and usable phrase in written English.
It means to form or design an official mark or symbol to represent something. Example: The company plans to create a seal to use on all of their products as a symbol of quality and authenticity.
Tiny tension discs put under the screws create a seal to secure the bezel on the case.
These units are usually placed above door entrances in stores, hospitals, schools, restaurants and other buildings, and create a seal across a doorway.
Beats, like similar models from Bose and Sennheiser, reduce ambient noise and create a seal over the ears for better audio clarity.
She studied and worked in Paris with the American sculptor Frederick MacMonnies before settling in New York City, where she shortly thereafter received her first important commission, to create a seal for the New York Bar Association.
Passive noise-reduction headphones, which can be either the full over-the-ear design or the smaller in-ear models, typically use layers of foam or rubber to create a seal around or within the ear that helps block external noise while the music flows through.
There are earbuds, which hang in the ears but don't plug the ear canals; in-ear headphones, which fit snugly in the ear canals and block outside sound; on-ear headphones, which sit on your ears but do not create a seal; and over-ear headphones, which encompass the ear and seal out environmental sound.
The lower solubility of quartz in the upper crust (Newton and Manning [2000]) will create a sealing cap for the deeper fluid due to precipitated quartz.
The heat turns the outside of the fish black — hence the name — and creates a seal that makes the fillet itself remarkably moist and tender.
In the procedure, the patient's own blood is injected into the meninges, creating a seal over the part where the bag is torn.
The "gas pump" hose doesn't just slip into your tank's opening; you actually lock it on, creating a seal.
The heat turns the outside of the fish black hence the name and creates a seal that makes the fillet itself remarkably moist and tender.
