self-sealing

You just pull out the self-sealing bag and dispose of it easily without getting dust everywhere.

With a rubber spatula, transfer the melted chocolate to a self-sealing food storage bag and, with scissors, snip off one corner to create an impromptu pastry bag.

There is perhaps no better example of self-sealing cognition than the contortions of climate change denial that erupted after the 2009 “Climategate” controversy.

Third, the "self-sealing" nature of conspiracy in general.

Most backpacking stoves are small, fold up easily and typically screw onto threaded tops of self-sealing, liquid fuel canisters.