- The two parts of two-part wood bleaches neutralize each other. Why are they mixed before being applied?
Wood Magazine https://www.woodmagazine.com/materials-guide/finishes/get-the-color-out-with-wood-bleach descibes the chemistry of two-part wood bleaches as follows:
Since they neutralize each other, why are the two parts mixed before being applied to wood?Once mixed, a chemical reaction begins, wherein the hydrogen peroxide, an oxidizer, acts to neutralize the caustic sodium hydroxide. Neutralized, the solution loses its bleaching power, so mix only what you can use immediately.