SAA Blue Mask Masking Fluid 60ml (SAABM60) Applied as a liquid, drying to a rubber, SAA Artists' Masking Fluid can cover any shape and size of area on the painting, even for really tiny areas making it a really versatile tool when it comes to watercolour painting. Blue Mask is lightly tinted so you can see where it is on the paper. Simply rub it off with a clean finger or eraser to reveal glistening paper underneath! Please note: This product contains latex Most orders will be with you inside of 12 days, although some may take up to 15 working days. If you have any questions, please use the address on our contact page