Sennelier Watercolor Mediums

With Sennelier’s Masking Fluid Drawing Gum, masking watercolors in detail is now easier than ever! Masking Fluid isolates background areas by creating barriers against moisture, ensuring that watercolor, ink, or gouache aren’t easily absorbed. It can be applied with a brush or nib, and is slightly tinted blue to differentiate from white backgrounds. Just remember to let it dry for two to three minutes before applying colors. After it dries, it can be peeled or rubbed off surfaces. Click “READ MORE” to find the right version of this miracle product for you.

Masking Fluid with Tube Applicator - 36.9mL

This handy tube applicator can save your brushes. At 36.9 ml (1.25 fl oz), this bottle of thin formula masking fluid will certainly last, especially considering that its .5 mm applicator opening can lay down the perfect amount. If that weren’t enough, the pin-cap keeps the opening block-free!

Masking Fluid Drawing Gum - 75mL

This is the bigger bottle of Masking Fluid Drawing Gum, able to be applied to brushes or nibs. It can also refill your Tube Applicator.