Almost every disappointing first kintsugi repair comes down to one of seven things, and six of them happen before the gold ever appears: skipping the practice piece, mixing the epoxy by eye, gluing edges that are not clean and dry, using far too much adhesive, letting go of the join too soon, and applying the gold powder at the wrong moment. The seventh is treating the finished piece as ordinary crockery afterwards.
The good news is that none of them require skill to avoid, only knowing about them in advance. Here they are in the order you are likely to meet them.
Why do first repairs go wrong at all?
Kintsugi is not a difficult craft. There is no kiln, no firing and no artistic training involved, and the whole repair happens on a kitchen table in an evening. What it does have is a clock. Two-part epoxy begins curing the moment the two parts meet, so kintsugi punishes hesitation in a way that most crafts do not.
That is exactly why our Kintsugi Repair Kit includes two china bowls to practise on, alongside the epoxy, the gold-effect powder, a mixing card and applicator and the instruction booklet. The practice bowls are not padding. They are where you make these seven mistakes cheaply.
Which mistakes happen before the glue comes out?
- Mistake one: starting with the piece you love. The heirloom should never be your first repair. Break and mend both practice bowls first, get a feel for mixing, joining and gilding, and only then go near something that matters. Learning on the thing you cannot replace is exactly backwards, and it is the single most common regret we hear about.
- Mistake two: mixing the epoxy by eye. This is the number one cause of glue that never sets properly. Two-part epoxy only cures when parts A and B are combined in roughly equal amounts and stirred thoroughly. Squeeze out equal quantities onto the mixing card and stir until the mix is completely uniform, not just swirled together. Getting this ratio right is what makes it cure hard.
- Mistake three: gluing dusty or greasy edges. Epoxy needs a clean, dry surface to grip. Fingerprints leave oil, and a break that has been sitting in a drawer collects dust in the fracture. Make sure both broken edges are clean and completely dry before any adhesive goes near them, and try to handle the edges as little as possible once they are clean.
Worth adding to the same stage: plan the whole reassembly dry before you mix anything. Work out the order the pieces go back together, starting from the largest, so you are never holding two slippery fragments while wondering what comes next.
Which mistakes happen at the join?
- Mistake four: using too much glue. The most visible beginner error, and the one that produces a repair that looks messy rather than deliberate. Apply a thin, even layer with the spreader. Too much simply oozes out of the join and has to be wiped away promptly before it sets. The thickness of the finished gold vein is yours to design, more glue for a bolder line, a sparing layer for a delicate seam, but that is a choice to make once you can control it, not on your first bowl.
- Mistake five: letting go too soon. Epoxy is strong but it is not an instant-grab adhesive. Align the pieces carefully and hold each newly joined piece firmly in place for 30 to 60 seconds before moving on. Weak joins that come apart later are nearly always the result of an impatient thirty seconds, an uneven mix, or edges that were not clean.
A related habit worth building: mix small batches rather than one big one. The glue is setting from the moment it is combined, so a large mix on the card is a large mix hardening while you work.
Which mistakes happen after the join?
- Mistake six: getting the gold timing wrong. The gold-effect powder is brushed along the seam to highlight the repair, and it needs something to hold on to. If the powder will not stick, either apply it while the seam is still slightly tacky, or run a fine extra line of adhesive along the join and then brush the powder onto that. Waiting until the seam is bone dry and then dusting powder at it is a recipe for a faint, patchy line.
- Mistake seven: treating the mended piece as crockery. This one is not about looks but about expectations. The adhesive is not food grade, so repaired pieces are best kept for display rather than used for food or drink. It is not waterproof either, so a mended vase will not reliably hold water, and the dishwasher is off the menu permanently. Wipe repaired pieces gently by hand.
None of that makes the repair less worthwhile. A mended bowl full of tea lights or keys is a lovely object, and candles are a perfect use for a repaired bowl: all of the beauty, none of the food contact.
What about safety, and what if it has already gone wrong?
The epoxy is strong stuff and deserves respect rather than nerves. Work in a well-ventilated area, wear the gloves, and avoid skin and eye contact, because it can bond skin in seconds. Keep it away from children, heat and flames, and read the full safety notices in the booklet before you start. Kintsugi is a craft for adult hands.
If a repair has already gone sideways, most outcomes are recoverable. A weak join can be cleaned up and redone. A messy seam can be wiped promptly, or in some cases the excess becomes part of the character, since the entire philosophy of kintsugi is that visible imperfection is the point. Wobbles in a gold line are not failures; they are the story of the repair, and no two kintsugi pieces on earth match.
The genuinely unrecoverable mistake is the one nobody warns you about: not starting. A first repair takes an evening, plus time to leave it alone while the glue cures fully. No kiln, no oven, no specialist skill. The Kintsugi Repair Kit arrives with everything, including the two bowls to get these seven mistakes out of your system, hand-packed in Britain.
Kintsugi mistakes FAQs
Why is my kintsugi epoxy not setting?
Almost always because parts A and B were not mixed in equal amounts, or not stirred thoroughly enough. Mix roughly fifty-fifty on the card, stir until uniform, and make sure the surfaces were clean and dry.
My gold powder will not stick to the seam, what now?
Apply it while the seam is still slightly tacky, or run a fine extra line of adhesive along the join first and brush the powder onto that before it sets.
Can I fix a join that came apart?
Yes. Clean the edges thoroughly, mix equal parts properly, apply an even layer and hold the pieces firmly for 30 to 60 seconds. Weak joins nearly always come from an uneven mix or an impatient hold.
Should I really break a bowl on purpose?
Yes, that is what the two practice bowls in the kit are for. Wrap one, break it, and make your beginner mistakes on china that carries no sentimental weight.
Can children do kintsugi?
No. The adhesive is powerful, bonds skin in seconds and needs a ventilated room and gloves, so the kit is designed for adults only.
Ready to make your mistakes on the practice bowls instead of the heirloom? See our craft kits.
