I quite often get questions about how to repair a sink that has started to break.It can be anything from the enamel starting to crack and ugly dark ‘veins’ starting to appear. It can also manifest as regular cracks or even result in the sink splitting into two or more pieces.
What is porcelain?
Porcelain wash basins are crafted from clay or a type of ceramic. These materials are molded and fired to create the desired shape. You can say that porcelain is a living material as each individual wash basin becomes unique. This is because the clay used never has exactly the same mixture of different materials and moisture content. Therefore, it often happens that wash basins and other crockery break in the manufacturing process.
As each wash basin is unique, there may also be minor differences, such as cracks, air bubbles and other small blemishes. The same goes for the enamel, of course!
The enamel is applied on top of pre-fired wash basins and then fired again to stick to the porcelain. Just like with the porcelain itself, the coating of the enamel is never exactly the same on two different wash basins, but it can be slightly thinner in some places and slightly thicker in others.
Kintsugi: Deal damage in a living material such as porcelain
Kintsugi is a Japanese art form where you take care of and repair damage in old ceramic objects. “Kin” means gold and “tsugi” stands for joint, or joining. Together it becomes a “gold seam” or “gold joint”.
Behind the concept is a tradition (wabi-sabi) of celebrating the imperfect and the natural. The philosophy encourages us to find beauty in the everyday and in wear and tear and to embrace the uniqueness of each thing. It emphasizes being present in the moment and accepting imperfections as part of the story and beauty of everything. It can be seen as a backlash against the modern world’s fixation on perfection, symmetry and the new.
Repair with Kintsugi
When you decide to try to repair an old sink using the Kintsugi method, the surface needs to be cleaned properly. This is so that the binder and the paint can get a proper hold and can penetrate into all the small crevices and pores.
Then take some kind of joint, glue or other binder that is suitable for the material of the sink, as well as the width of the cracks. Sometimes you may need to scrape up the crack and make it slightly larger to get a proper surface to attach to.
Then you mix the binder (for example, a water-resistant and strong two-component glue) and brush it into the crack. Then a thin layer of silver or gold foil (gold leaf) is carefully placed over it and allowed to dry. There are some who paint over the joints with gold paint to make the pattern stand out. Another method is to mix in the dye you want the joints to have directly in the binder.
Clear! You have now repaired your sink using the kintsugi method and can enjoy your imperfect but beautiful sink for many more years!
Watch video of the Cycling Plumber repairing sinks with Kintsugi:
Cracked sink repair using Japanese kintsugi technique – YouTube
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