I wanted to do some homemade white milk paint. I followed the instructions given by this website. I may have been very naive but I thought to myself that since I only needed a "whitewash" version of milk paint, then I did not need to add pigment to the recipe. Therefore I only used hydrated lime. The obtained "paint" definitely looks like in the tutorial (white version).
But when I applied it on the surface of some clean pine plywood, instead of successfully painting it white, the wood took some strange dark tone (see picture). Now, the thing is that the surface definitely looks like it was painted, not white though. So the idea seems to at least, well, work somehow... Is a pigment really necessary to obtain white milk paint? If so, which one would work?