Masking Fluid For Watercolor Painting: Designed for artists and crafters, perfect for watercolor, calligraphy and mixed media creations to create crisp, sharp, bleed-free edges. Features: Quick-drying formula that tears off easily without damaging paper or canvas or leaving any residue. Easy to use: After shaking evenly, apply the masking fluid to the area to be protected; ensure complete coverage and seal the edges; wait for 5-15 minutes to dry naturally, and then paint after it is completely dry; after the paint is completely dry, gently rub off the masking film with an eraser or your fingers. Easy To Removal: Once the watercolor masking fluid are completely dry just rub the gum with your cleaning brush to reveal the masked parts of your work. Widely Used: Art masking fluid suitable for watercolor painting fine blank space requirements, multi-layer superposition painting, large area and detail combination, special technique creation, beginner practice. Enhance the quality of your artwork with WANJAO Professional Grade Masking Fluid. Trusted by artists worldwide, this liquid masking fluid protects delicate surfaces while bringing out vibrant colors. The role of masking fluid： White space: Cover details that need to be preserved (such as highlights, fine lines, complex shapes). Layered painting: Prevents different color layers from mixing, especially suitable for the superposition effect of transparent watercolor. Masking fluid properties： Forms a waterproof film after drying. Removability: After drying, it can be gently erased with an eraser or fingers. Color:White How To Use: 1. After shaking evenly, apply the masking liquid to the area to be protected. Make sure it is completely covered and the edges are sealed (to prevent the pigment from seeping in). 2. Allow to dry naturally (about 5-15 minutes), and then paint after it is completely dry. 3. After the pigment is completely dry, gently rub off the masking film with an eraser or your fingers. Notes: 1. Avoid using on wet paper, as it may cause tearing. 2. Test the paper tolerance (some thin papers may be damaged). 3. Masking fluid should not be left on for too long (it is recommended to be removed within 24 hours), otherwise it may be difficult to clean. 4. Wash the brush with soapy water immediately after use.