OK, I have the spray on formula. But it's too thick for my tiny airbrush to handle, so I'm wiping it on. Even heated it's not like water, more like syrup. My airbrush compressor can only deliver 25 psi, so spraying is not possible for me right how. I'm using a makeup sponge to apply it. Surely not as high quality as a good foam brush, but we are in Lockdown since November and most shops are still closed, so getting the good stuff is troublesome, and "blind ordering" from the web is hit or miss so I use what I have...