Close-grained and Sealed up

Close-grained adjective - Dense or compact in structure or texture, as a wood composed of small-diameter cells.

Sealed up and close-grained are semantically related. In some cases you can use "Sealed up" instead an adjective phrase "Close-grained".

Close-grained and sealed up are semantically related. Sometimes you can use "Close-grained" instead an adjective phrase "Sealed up".