What is masking fluid primarily used for?

Masking fluid is primarily used to cover surfaces before painting, particularly in watercolor and other paint applications. This substance acts as a barrier, protecting specific areas of the paper or canvas from being painted over. When the artist applies masking fluid to a surface, it dries and forms a waterproof seal. This allows the artist to paint over the masked areas without affecting them.

Once the painting is completed, the masking fluid can be removed to reveal the untouched areas underneath, which is especially useful for creating highlights, intricate details, or preserving the white of the paper. This technique offers artists the flexibility to work confidently with layers of color while maintaining precise areas that should remain unpainted.

The other options are related to different aspects of art processes. Cleaning paintbrushes pertains to maintenance after painting, mixing colors involves the process of creating new hues, and adding texture to paint refers to techniques that enhance the physical qualities of paint itself. However, none of those options fulfill the specific function that masking fluid is designed to serve in the creative process.