Traditional urushi kintsugi joins broken pottery with lacquer tapped from a tree and finishes the seam with real gold, and it takes weeks to months of patient layering and curing to complete one piece. Epoxy kintsugi, the method in almost every home kit, joins the same break with a two part adhesive and finishes it with a gold effect mica pigment, which brings a repair down to a single evening plus curing time. If you are a beginner with a broken bowl and no lacquer training, epoxy is the sensible choice, and this is what you gain and give up by taking it.
What is traditional urushi kintsugi?
Urushi is the sap of a tree, refined into a natural lacquer that has been used across Japan and East Asia for a very long time on bowls, boxes, furniture and armour. In kintsugi it does two jobs: mixed with flour or clay it becomes the adhesive and filler that rejoins the break, and brushed on thinly it becomes the ground that the metal powder sticks to.
The reason it is slow is the curing. Urushi does not dry the way paint does, it hardens through a chemical reaction that needs warmth and humidity, so layers are built up one at a time with days of waiting between them, in a controlled damp space. Gaps and missing chips are filled with lacquer based putty, each layer is sanded and polished back, and only at the end is real gold powder dusted over the final lacquer line and burnished. Practitioners train for years, and the fresh lacquer is an irritant that some people react badly to on the skin, so it is handled with real care.
What you get for all that is an object repaired in the way its makers would recognise, in materials that have a centuries long track record, finished in actual precious metal.
What is epoxy kintsugi?
Epoxy kintsugi keeps the aesthetic and swaps the chemistry. A two part epoxy adhesive, mixed in equal amounts, does the joining, and a gold effect mica pigment does the gilding. Mica is a mineral pigment, the same family used in art materials and fine cosmetics, and brushed along a seam while it is still slightly tacky it gives you the bright golden line that makes a kintsugi piece look like a kintsugi piece.
The practical difference is enormous. In our kintsugi kit you mix on the card, spread a thin layer with the spreader, press the pieces together and hold each join for 30 to 60 seconds, then leave it to cure fully undisturbed before gilding. No kiln, no oven, no humidity cabinet, no sanding back between layers. Two practice bowls come in the box so the first join you ever make is not on something you love.
How do the two compare?
- Time. Urushi runs to weeks or months for one piece. Epoxy is an evening of work and then curing time.
- Skill. Urushi rewards training and punishes guesswork. Epoxy asks you to mix equal parts thoroughly, spread thinly and hold steady, all of which are learnable in one sitting on a practice bowl.
- Materials. Urushi uses tree lacquer and real gold. Epoxy uses a synthetic adhesive and a mineral pigment that reads as gold.
- Cost. Real gold powder and lacquer are specialist purchases, and a workshop or a commission on top of them is a serious outlay. A home kit sits at craft kit money.
- Result. Both give you a bold seam that celebrates the break. Close up, lacquer and true gold have a depth and warmth that pigment approximates rather than matches.
- Limits. A properly made urushi repair has a long history behind it as a working object. A repair made with a home kit is decorative, which is worth understanding before you start.
Is epoxy kintsugi still real kintsugi?
It depends what you think kintsugi is, and it is worth being straight about it. If you define the craft by its materials and its process, then no, a mend made with epoxy and mica is not urushi kintsugi and no honest kit will tell you it is. Serious practitioners maintain that distinction for good reason, since the tradition is a genuine discipline with real training behind it.
If you define it by the idea, that a break is part of an object's story and should be shown in gold rather than hidden, then the kit version carries that idea faithfully. Your mended bowl still says the same thing on the shelf. Our own description of it is simple: a modern, accessible take on kintsugi, using epoxy instead of lacquer. That is what it is, and it is a great deal better than the same bowl in the bin.
Which should a beginner use?
Start with epoxy, almost without exception. A first repair teaches you things that no amount of reading does: how much adhesive a join actually needs, how firmly to press without sliding the pieces, how bold you want the gold vein, what an uneven mix looks like when it refuses to harden. Learning all of that on urushi means learning it across months.
If the craft grabs you, the tradition is still there afterwards. Plenty of people move on to lacquer later, or send a genuinely valuable piece to a professional while mending their everyday chipped bowls at home. There is nothing contradictory about that. The kit is the door, not the ceiling.
What will an epoxy repair not do?
Three honest limits. The adhesive is not food grade, so a mended piece becomes something you display rather than something you eat or drink from. It is not waterproof either, so do not fill a repaired vase or leave a mended bowl soaking, and it should not go in the dishwasher. And it is an adults only material: work in a ventilated room, wear the gloves, avoid skin and eye contact and keep it away from children.
None of that is a hardship once you plan for it. A repaired bowl makes a lovely home for tea lights, keys, rings or a plant in its own pot, and a mended plate on a shelf or wall shows off the gold better than a cupboard ever did.
Epoxy and urushi kintsugi FAQs
How long does traditional urushi kintsugi take?
Weeks to months for a single piece. The lacquer cures slowly in warm, humid conditions and is built up in thin layers with waiting and polishing between each one.
Does a kit use real gold?
No, a home kit uses a gold effect mica pigment rather than gold leaf or gold powder. It gives the same bright seam along the join at a fraction of the cost.
Can I use an epoxy repair and switch to urushi later?
Not on the same break, no. Once epoxy has cured it is in the join for good, so if a piece is valuable enough to want a traditional repair, leave it alone and take advice before gluing anything.
Is epoxy kintsugi strong?
The adhesive itself is strong, but a mended piece is best enjoyed as decoration rather than daily crockery. Hold each newly joined piece for 30 to 60 seconds and let it cure fully for the best bond.
Which is better for a gift?
A kit, comfortably. It arrives complete with practice bowls and a booklet, and the kit gives someone an evening's project rather than a material they would then need to learn how to use.
Curious to try the modern version first? Take a look at our craft kits.
