ChristianAnswers.Net WebBible Encyclopedia
asphalt or bitumen in its soft state, called “slime” (Gen. 11:3; 14:10; Ex. 2:3), found in pits near the Dead Sea (q.v.)
It was used for various purposes, as the coating of the outside of vessels and in building. Allusion is made in Isa. 34:9 to its inflammable character.