Under the Psychoactive Substances Act 2016, it is an offence to sell solvents to persons under the age of 18. Upon delivery, you will be asked to verify your age with a photo driving licence, passport or a proof of age card, such as the PASS card from the national Proof of Age Standards Scheme.Art masking fluid from Winsor & Newton is a pigmented masking liquid made from rubber latex. Use masking fluid to protect layers of work from large washes of colour, splattering paint or to keep clean lines. With a pigment in the fluid, It is easy to see exactly where you have applied any of the masking fluid. When dry simply rub the latex off the page with an eraser or your finger to reveal the clean layer underneath. - Brand: Winsor & Newton - Pigmented masking fluid - Size: 250ml - Liquid rubber latex - Do not apply to damp paper - Remove as soon as possible when dry - Clean brushes immediately after use