6 Tips for Using Masking Fluid in Watercolour Painting

1. Choose the Right Masking Fluid: Not all masking fluids are created equal. Look for a high-quality brand that’s specifically designed for watercolours. Some might be tinted for easy visibility, while others are clear—choose one that suits your working style.

2. Use a Fine Brush: Applying masking fluid with a dedicated fine brush can help you achieve precise lines and details. Ensure it’s an older brush that you don’t mind sacrificing, as the fluid can ruin bristles.

3. Dilute When Necessary: If your masking fluid is too thick, consider diluting it slightly with water to improve its flow. Just be cautious not to over-dilute, as this can compromise its effectiveness.

4. Test on Scrap Paper: Before committing to your artwork, practice applying the masking fluid on a scrap piece of watercolour paper. This will help you understand how it behaves and ensure you’re satisfied with the application technique.

5. Allow It to Dry Completely: Patience is key! Make sure the masking fluid is completely dry before applying your watercolour washes. If it’s still wet, it can lift when you paint over it, undermining your careful planning.

6. Remove Carefully: Once your painting is dry, gently peel off the masking fluid using your fingers or a rubber eraser. Take your time to avoid damaging the paper, and be sure to remove it before applying any final touches or glazing.

By following these tips, you can effectively use masking fluid to preserve the pristine white areas in your watercolour masterpieces!