Traditional, lacquer based kintsugi, this video shows more polishing in step 5b, polishing #3 gold with aburatonoko. Abura(oil)tonoko(natural polishing powder) is made by adding oil, I use cooking oil, to tonoko to make a sticky mix. Take that and apply it with your finger or tissue, rubbing as hard as you can. Finish by using tissue to remove the excess.
I will do subsequent steps in following videos.
For more on this process and other steps for traditional, lacquer based kintsugi, see