Then, it forms a black coating known as tarnish.

Then he continued on across the floor, the sticky black coating picking up traces of the virus.

Although both contain asphalt, the black coating generally contains more and therefore has greater waterproofing ability.

The black coating was not a "black body" color or lack of color.

The entire area held a gritty, gray- black coating that made an unpleasant crunching sound under his boots.

Gouda that is older, is usually sold with a black coating.

But the black or white coating could be partly rubbed off with handling, so such corrections were generally not acceptable in legal documents.

The black coating on the thermopile sensor absorbs the radiation.

One side had the black coating of the tiles designed to deflect the greatest heat.

Two types of coating - black and metallic, each available in several grades - are manufactured.