These often come with a protective layer that, when removed, reduce the value of the piece.

The protective layers of stone and metal make them feel secure.

Beyond those protective layers, the shields gave no warning before they killed.

It's best to wear a protective layer, such as gloves.

These finish types allow for the formation of a protective layer.

Her body made a protective layer over the Earth.

Police officers need to grow a tough protective layer of indifference.

Then a storm last winter ripped apart the protective layer.

The pastry when cooked created a tough protective layer around the food inside.

Already she'd begun to develop a protective layer of sarcasm.

The ozone acts as a protective layer over the surface of our planet.

This is because the steel forms a protective layer on its surface under the influence of the weather.

"They may be used in unusual coatings and protective layers," he said.

He held out his right arm and stared at it, encased in its protective layers.

How she had fashioned the idea that a spirit could be a sort of second skin for someone, a protective layer somehow.

It went through the protective layers of his uniform.

The trackway is now preserved under a protective layer of earth.

A single layer might be used just as a surface protective layer.

However, the protective layers are subject to erosion by micrometeorites.

It's the protective layer that lets virtually incompatible systems get in bed together.

Inside, the cryocorpse was insulated by two more protective layers.

Some "screen wash" spray products claim to leave a protective layer after use.

Then, one by one, the protective layers collapsed around the manager and the coach.

The caskets are simply gone after the protective layer of bricks washed away.

The area later became a car park, sealing the remains under a protective layer of tarmac.