The room itself had a single doorway, and it was ringed by the ruins of a rubber gasket, which meant that in better days the entrance could have been sealed airtight.

The one-pint Mason jar, with a green cast to the glass, was sealed airtight by a clamp and a rubber gasket.

As carbonic acid is constantly produced, the bottles can not be sealed airtight and have a permeable lid (they would burst otherwise).

To gather them he had to put carefully away two objects he'd sealed quite airtight in plastic bags.

Explaining what caused the problem, Mr. Abernathy said: "They're sealed airtight, and they're in a vault, which is generally an airtight vault.

I believed the Butte must have been sealed airtight.

They should be sealed airtight with silicone caulk.

Since everything in the Moon has to be sealed airtight, you've got to watch out for quakes.

Your crude oil runs into a tank of some kind, and you pipe it from there to a retort, some big vessel that you can seal airtight.