Winsor & NewtonWatercolor Medium, Art Masking Fluid, 75ml (2.5-oz) bottle

The smell is a bit off-putting (definitely have good ventilation going while you use this) but it was super easy to use. You don't need a whole lot to cover the areas you want to mask. A thin layer is enough, and it's easy to remove (make sure your fingers are dry before you start to rub it off). If you use a brush, someone suggested applying a thin layer of soap to the bristles before dipping it into the fluid, and that seems to do the trick in protecting the brush. The off-white color makes it easier to see on white paper. Very nice product.

The media could not be loaded. I’ve used this masking fluid for years, and it has never let me down. Recently, I tried switching to a different brand but eventually went back to this one because it works perfectly for me. After drying, it doesn’t let water through, and I don’t have much trouble removing it. Just keep in mind that it has a strong smell, though not overwhelming.Here are some tips I’ve learned over time, if it helps anyone:- The best way to apply this or any masking fluid is with a silicone tip. It’s soft and allows you to spread the fluid evenly. Using brushes can damage their bristles, but if you choose to use one, select an old brush or one you don’t mind getting stained. Be sure to wash it immediately after applying the fluid to prevent it from drying on the bristles.- Since this masking fluid has a beige-yellowish tint, the longer you leave it on, the more it can stain the paper.- It can be removed relatively easily with your fingers or a curved tool that won’t damage the paper. Always be very careful, especially with 100% cotton paper, as it’s more delicate (and expensive!). It’s a good idea to test the masking fluid on a separate piece of paper before applying it to your final work.

I love this for my watercolors! It works amazing well for blocking small areas where negative space is needed, or just keeping areas safe when you want to paint them after the majority of the field is flooded with color.

Windsor Newton products are a good quality. This masking fluid does not disappoint. It’s a light color and a very mild odor. Applied smoothly and when it came time removed easily.

This masking fluid is easy to use and works well for watercolors.

This is my first time using masking fluid and I was a little scared at first, however this worked easily with no learning curve. Just dip your brush in and paint where you want to avoid color. Peel it away when everything is dry. Easy peasy!!!

This is so necessary for the artist who paints in watercolor. Windsor Newton is the best high quality purveyor of artist tools.

When doing water color background, I use this masking medium to block out the subject of the painting first. After I am done with the background, I rub off the medium, and then paint my subject.