Schmincke - Masking pen coloured, 25 ml, 50 731 005, dosing pen, blue masking liquid for opaque areas of paintingson watercolour paper, smooth drawing cardboard, ammonia-free

This masking pen is great. Compared to the bottle of masking fluid I normally use it is simple to use and does not get 'stuck' when trying to open top, unlike the pesky bottles where you get frustrated trying to unscrew a tightly closed top because the fluid gets stuck around rim even when you clean it before replacing the top. It also comes in blue or clear colour. So grateful my friend recommended this item. Good value too.

Great for what it is but not suitable for my purposes. I purchased this to aid in painting plastic models but it grips the plastic surface too strongly and comes off in small pieces. On paper it can off easily enough.

Easy to use and remove. No brush needed. My preferred masking fluid

I just got this and tried it over both white watercolour paper and on paper that already had two layers of watercolour on it. It protected both beautifully. make sure to use a very thin layer. I placed a bit on a piece of plastic and dipped in it with an old brush. it dries fast so you have to work fast. it dries down transparent and blue. didn't damage my paper or the layers of paint underneath it

Wouldn't rub off

easy to use,will buy again.

Hugely disappointedIt removes the surface of the paper as wellReturned but lost one good painting

Very easy to apply.