For artworks, patination is often deliberately accelerated by applying chemicals with heat.

One common reason to apply chemicals is mildew.

Monk applied various chemicals to the piece of glowing rock.

The grass won't use food until warmer weather, so do not apply chemicals, which will only wash into the water system.

Further experimentation lead him to apply chemicals directly onto the photo surface without the use of a camera.

Meanwhile, rather than spray from the air, the county will apply chemicals to identified areas.

Would have required commercial pesticide companies to notify neighbors when they plan to apply chemicals outdoors.

We don't want to apply chemicals for the sake of applying chemicals.

That being said, you're applying chemicals to your skin, so it's important to take the proper precautions.

They heat the piece and apply different chemicals to bring out different colors in the metal.