Mr.Masking Sol Re2 (M135)

It flows like a dream once you get the dilution right, and the fact that it’s water-soluble means cleanup is just a rinse under the tap. I’ve used it straight from the bottle and thinned it down, and both worked fine for my airbrush masking.

I’ve been thinning this stuff with tap water to get a lighter coat, and it levels out so smoothly that the edges stay razor-sharp even after two passes. The only prep I had to do was stir it well, but that took less than a minute. Just be careful not to over-dilute if you’re stacking multiple acryli

Finally a maskant that actually dilutes with plain tap water instead of needing some special thinner. I was able to tweak the consistency for a really fine pre-shade line, and it peeled off cleanly without tearing the base coat. Just be aware that wet acrylic over it can react a bit, so I let it dry