How to repair big chipped area or lost pieces

How to repair big chipped area or lost pieces(Silver maru powder polish finishing)

Process Make a big chipped area, apply lacquer, sprinkle metal powder

    • Day1 : Apply a coat of basic lacquer as foundation, apply kokuso
    • Day2 : Shape kokuso, apply sabi
    • Day3 : Polish Sabi, apply a coat of basic lacquer
    • Day4 : apply tame-urushi
    • Day5 : Polish with water and sandpaper, apply bengara-urushi (red lacquer)
    • Day6 : Polish with water and sand paper, apply tame-uruhi, sprinkle metal powder
    • Day7 : Apply 1st coat of basic lacquer
    • Day8 : Apply 2nd coat of basic lacquer
    • Day9 : Polish, Finish

(Day1)

  1. Use masking tape to cover any area that might get dirty during the process.
  2. Cut a piece of #400 sandpaper into a square around 1cm in size, fold it in 3 and polish the chipped area. Apply a layer of basic lacquer to the chipped area with a brush and gently press with a piece of tissue paper to remove extra lacquer.
  3. Make Kokuso
  4. Apply kokuso to big chipped area or lost pieces area with a toothpick or a spatula. The thickness of kokuso to be applied each time is aprox. 2-4mm. If the chipped area is larger than that, repeat the process after it is dried for a few times.
  5. Set the piece aside to dry in a urushi-buro for around 1 to 2 months.

(Day2)

  1. When the kokuso is well dried, arrange the approximate shape with a cutter or a carving knife.
  2. Make sabi
  3. Apply sabi with a toothpick or spatula to arrange the shape.

(Day3)

  1. After letting the sabi dry for over 24 hours, remove the extra sabi with a cutter or a carving knife.
  2. Once you arranged the shape with a cutter, sand down the sabi with #800 sandpaper and water until the surface is smooth. 。
  3. When the shape is neatly arranged, apply a layer of basic lacquer to the sabi with a brush and gently press with a piece of tissue paper to remove extra lacquer.

(Day4)

  1. When the basic lacquer is dry, gently polish the surface with water and #800 sand paper.
  2. Make tame-urushi.
  3. Apply tame-urushi with a brush and let dry in a urushi-buro.

(Day5)

  1. When the tame-urushi is dried, polish the surface with water and #1500 sand paper.
  2. Make bengara-urushi
  3. Avoid discovering the sabi under the lacquer while polishing. Apply bengara-urushi with a brush and let dry in a urushi-buro.

(Day6)

  1. When the bengara-urushi is dried, polish the lacquer surface with water and #1500 sand paper.
  2. After nicely polished, let’s get ready to sprinkle silver maru powder. Apply tame-urushi uniformly in a very thin layer. After applying the thin layer of lacquer, let it sit for 5-30min, when the surface of the lacquer begins to dry, sprinkle the silver marui powder with the sprinkle brush (ashirai-kebo).

(Day7)

  1. When it is well dried in the urushi-buro, clean the extra silver maru powder with a brush.
  2. Apply a coat of basic lacquer over the maru powder so that the powder may absorb the lacquer, gently press with a piece of tissue paper to remove extra lacquer. Repeatedly press with clean tissue paper until no marks of lacquer remain on the tissue. This process is called “Fun-katame”.
  3. Let dry in a urushi-buro.

(Day8)

  1. When the lacquer is dried, repeat the fun-katame process.
  2. Let dry in a urushi-buro for at least 10 days.

(Day9)

  1. Make”abura tonoko(mixture of tonoko and oil)
  2. Apply abura tonoko on a piece of cotton and polish the area sprinkled with maru powder.
  3. Apply ishiko (polishing stone powder) on your finger and rub the area.
  4. Polish with a polishing spatula. Finish.

  *Left over abura tonoko can be kept in food wrap.