Masking fluid is a lifesaver for watercolour artists seeking to preserve the white of their paper or lighter washes for highlights and details. It's a liquid concoction, typically made from latex, that acts as a temporary barrier on your watercolour paper. Once applied and dry, it forms a thin, rubbery film that repels watercolours. This allows you to paint freely around the masked areas, keeping them untouched by colour. If you're new to using masking fluid or looking to refine your technique, this complete guide will walk you through everything you need to know to make the most out of this versatile tool.
Crisp Whites and Highlights: Watercolor relies on the paper's natural white for highlights. Masking fluid lets you achieve sharp whites and light accents without meticulously painting around them. This is particularly useful for details like snowflakes, stars, or tiny flower centers.
Sharp Lines and Defined Edges: Masking fluid creates clean lines and crisp edges that would be difficult to achieve with traditional painting techniques. It's perfect for lettering, geometric shapes, or architectural details.
Negative Painting: This exciting technique involves painting around unmasked areas to create the image. Masking fluid allows you to "reserve" shapes like leaves or flowers, letting the negative space become the subject of your artwork.
Layering Freedom: Masking fluid lets you build up layers of watercolor confidently. Apply washes and details in stages, masking areas you want to keep untouched by subsequent layers.
Traditional latex-based fluid - The most common type of masking fluid is the traditional latex-based variety. It is easy to handle, dries quickly, and creates a reliable barrier. However, it's important to note that some latex-based masking fluids may contain ammonia, so proper ventilation is crucial when using them.
Considerations for choosing the right type - When selecting a masking fluid, consider factors such as the desired drying time, flexibility, and ease of removal. Some artists prefer alternatives such as rubber cement-based masking fluids, which are ammonia-free. Whichever type you choose, make sure it is compatible with watercolor paints and will not harm your paper.
To get started with masking fluid, gather the following essential supplies:
Essential Supplies:
Masking fluid bottle: Choose a bottle with a fine-tip applicator for more control over the application.
Watercolor paper: Use high-quality watercolor paper that is specifically designed to withstand the water, pigment, and removal techniques involved in watercolor painting. Rough or cold-pressed papers are recommended for better adherence of the masking fluid.
Brushes: Use either disposable brushes or dedicate a brush solely for masking fluid application. A brush with synthetic bristles is ideal, as it will be easier to clean after use. Note* To prevent your brushes from getting ruined by the masking fluid, try this handy trick: before using a brush for applying masking fluid, dip it in soap. The soap will create a barrier between the brush and the masking fluid, making it easier to clean afterward.
Optional tools: Have a toothpick or a rubber eraser on hand, as they can be useful for creating precise lines or erasing lightly.
To ensure successful masking, proper preparation is crucial. Start with dry watercolor paper. Masking fluid adheres better to dry paper, preventing it from seeping underneath the fluid. Plan your composition and identify the areas you want to preserve or create clean edges. It's helpful to have a clear vision of your painting before applying the masking fluid.
There are various methods for applying masking fluid, depending on the desired effect.
Brush Method
Use a brush to paint the fluid onto the paper. Ensure that the brush is evenly coated and apply the fluid smoothly in controlled strokes. Clean the brush immediately after use.
Toothpick Method
For smaller, more intricate details, use a toothpick to apply the masking fluid more precisely.
Splatter Technique
Apply masking fluid by flinging it from a brush or toothbrush onto the paper. This technique creates textured areas or interesting effects.
Apply the masking fluid with a gentle touch. A thin, even layer is best. Overapplying can be difficult to remove cleanly.
Less is More - For intricate details, consider using a toothpick (example above)
Let it Breathe - Allow the masking fluid to dry completely before applying watercolor paints. This usually takes around 15-20 minutes depending on the thickness of the layer.
Once your painting is completely dry (including the watercolor!), gently rub the masking fluid off with your fingertip.
A soft cloth can be used for stubborn areas, but be very gentle to avoid lifting the watercolor underneath.
If the masking fluid seems stuck, try slightly dampening your fingertip or cloth. However, be very cautious with water, as it can reactivate the adhesive and cause tearing.
By following these really basic tips and techniques, you'll be able to make the most of masking fluid and unlock new possibilities for your watercolour paintings.
Remember, practice makes perfect, so don't be afraid to experiment and explore different applications to find what works best for you. Now, go forth and create your masterpiece with confidence using the versatile masking fluid!
See how you protect areas of your paper surface with Molotow Graphx Art Masking Fluid pens and Winsor and Newton Masking Fluid when painting using watercolour. Watch our colourful tiger jump out of the page!
Add To List
Add a Wishlist
form to add wishlist here