Darkening one side of white buckram
I am making a mask that has comic-book white eyes. I picked up a yard of white buckram, which I have never worked with, but it seems like it will do the trick.
However, I now know what people mean when they say the material is harder to see through in low-light environments. I have seen posts suggesting that I color or paint one side of the buckram black to cut down on the reflected light and thus increase visibility.
I took a black sharpie and colored one side of a swatch, and it indeed helped the visibility quite a bit. However, even though I thought I was pretty light-handed with the marker, the black ink still bled through and is visible on the other side, ruining the "white eye" effect.
Is there a better way to darken one side of the material to increase visibility without darkening the other side?