Pebeo Easy Peel Liquid Latex Masking Fluid - Drawing Gum - Dries Quickly - For Ink - Watercolor - Gouache Painting & Illustration - Fine Arts & Crafts Supplies - 45ml Bottle

I ran this through an ‘endurance’ test today. I used three different types of applicators - one was a ruling pencil (a very cheap one) and two were silicon ‘brushes’ (also cheap). Bottom line was this mask will be an indispensable part of my toolkit. Detail: I made thin lines with the ruling pencil and thick lines with the ruling pencil and with the silicon brushes, and swooshes with the silicon brushes. Ruling pens require frequent refilling but the mask didn’t seem to be more likely to bleed at the places where I had to refill my ruling pen. I did curves and straight lines. I did little dots and circles. Once the masking was done, I let the mask dry for about 90 minutes before applying in different areas water color, water color pencil, and colored pencil and mineral oil blender. Mineral oil in my test didn’t negatively impact the mask one bit. Bottom line is that this mask passed every test. I was happily surprised that the mask did alright with colored pencils. I was a bit careful in my pencil strokes though, because I think the pencil EVENTUALLY would remove at least the edges of the mask, but in my test it didn’t happen. Not even a rubbery nubby! I didn’t color a lot with pencil over the mask, but I wasn’t as careful as I could have been. Not one edge of the mask came up with the pencil work. That’s amazing. Let’s call my level of caution with the colored pencil ‘careless light’ (as opposed to ‘wantonly wild’ or ‘fearfully timid’). Light pencil pressure didn’t seem to mangle the mask in my test. I waited with mask removal until about five hours from mask application. The mask removed super easy with a rubber/gum eraser (also purchased on Amazon). In fact, once I started removing the mask with the rubber/gum eraser, I could pull off long pieces of the rest of the masked line without even using the rubber/gum eraser. This seems to be a strong mask if it turns into something strong enough to pull off in one piece! Even though I used lots of water in some of the watercolor, and mineral oil with the pencil, there was NO BLEEDING either above or below the masked lines. I purposely did one side yellow and the other blue just to see if I’d find any green - there was no green! I used so much water that the watercolor bulged up to the line, but no bleeding. That’s fantastic! Cleanup of the tools I used to apply the mask was pretty easy - and my application tools super cheap. I like the blue tint in the mask, makes it easier to work with. Also makes removing the mask a true ‘reveal’ - the difference is quite fun! Definite recommend. Enjoy! 6-30-2022 UPDATE: I applied quite a bit of masking fluid using a ruling pen on one page of Canson XL Bristol paper. I estimate the masking when all added together covered roughly 40% of this 9”x 13” piece of Bristol paper. After the masking was all applied, I ran out of time and so did not add color (Caran d’Arch water color pencil and Prismacolor Premier color pencil) until the next day, so the mask was on the paper for more than 24 hours. It worked without any bleeding (either on top or below the masking fluid) and amazingly removed easily (with my fingers) without damaging the paper, and left absolutely no residue at all on the paper. I’m also surprised how much masking fluid is left in this little jar after this project! A++++ 5 stars :) Hope this is helpful info for you :)

Was told by art teacher product was excellent so ordered one for myself, and one for each of my two friends.(Have not used it yet!)

Es el mejor producto que he usado para enmascarar acuarelas. Super prectico y facil de usar. No habria podido lograr el efecto que necesitaba sin esto. Es sencillo de aplicar y tambien de remover y no deja rastro alguno. La unica recomendacion que hago es que cuiden la limpieza del pincel y/o no usen un pincel demasiado caro para aplicar la goma porque en mi primer intento deje un momento el pincel y se seca rapido y pueden hechar a perder el pincel. Hay que lavar bien con agua y jabon para que no se pege. Al finalizar, pude remover la mascara de goma con una goma suave de borrar. La de migajon funciona perfecto y en areas grandes incluso con los dedos se puede remover, pero si quieres evitar manchas es mejor un borrador

Came in good condition andeasy to

This stuff is pretty much the gold standard for watercolor masking fluids. It goes on bright blue, keeps your paper, white, and removes easily without a trace. You can see in the picture where I removed a small segment, and it kept the paper absolutely white and removed easily and completely. I had kept this masking fluid on my painting for about a week and you can see that it still removed without a trace. This larger bottle was a very good deal. I teach an art class and decanted the larger bottle into several smaller containers for my students. Please note that no masking fluid will last forever in the bottle. After several months, it will eventually dry up and solidify.