This video shows step #2, applying first hardening lacquer to #4 silver.   I applied the silver last Friday and this application is 7 days after that.  After applying the hardening lacquer I dab it off with tissue. Each dab shows a lighter colored stain than the time before and dab until there is no stain.

For more on traditional, lacquer based kintsugi see kintugi.com or https://www.kintugi.com/?page_id=225