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How to use a kintsugi repair kit

Updated: 23 October 2026

The box is open on the kitchen table, the two syringes are in your hands, and the glue is about to skin over before the second shard is seated. How to use a kintsugi repair kit, for the epoxy and resin boxes in this comparison, comes down to a small mix, one edge, and powder while that kit’s glue will still take it. The product grid stays on the [Kintsugi set comparison](/hub/diy-supplies/kintsugi-set). Food-contact law stays on the [is kintsugi food safe](/hub/diy-supplies/kintsugi-set/sub/kintsugi-set-food-safe) page. What follows is the sequence and the usual failures, written so you can stop before a hot drink or a dishwasher.

The box is open on the kitchen table, the two syringes are in your hands, and the glue is about to skin over before the second shard is seated.

Our top picks

deuvuo deuvuo 21-piece gold kit

Best overall

deuvuo deuvuo 21-piece gold kit
8.8/10about £19.99
iienjoy iienjoy 4-colour kit

Alternative

iienjoy iienjoy 4-colour kit
8.0/10about £16.99
On this page

Set up before you twist the syringe

Keep the piece you care about in another room for the first attempt. UK reviews describe glue that flashes off, powder that travels, and a messy first joint. A spare saucer is the right rehearsal. Wipe sharp edges, and make sure the ceramic is dry. Work near an open window. Uncured epoxy and amine hardeners are skin sensitisers. DermNet treats them as irritants, and GB CLP is how the Health and Safety Executive expects a hazardous pack supplied in the UK to be labelled. Wear the gloves. If they are too small, as one Plearty reviewer found, use a larger pair. There is no single five-minute rule. iienjoy states 30 to 40 minutes before the initial set, then 24 hours, longer below 25°C. Holamdo states a 2-minute window. DecorRom’s bullet says about 30 minutes, and UK reviews say 20 to 30 seconds once the gold is in. CHIYU’s how-to is 5 to 10 minutes at about 20°C, and it is not the sheet for Limino, deuvuo, or Fuchoi. Mask the glaze first if the kit includes tape.

Mix a small, even batch

Squeeze a small, equal amount of each part. A rice-grain to a pea is enough for one seam. Stir until the colour is even. An uneven mix is a common reason a line never cures: a verified Fuchoi review still found soft glue after two days. The whole syringe is the usual waste. DecorRom, Holamdo, both Limino kits, and deuvuo are described by UK buyers as faster than a leisurely half hour. Once the powder goes in, some of those glues skin in well under a minute. If the bullet says 30 minutes and the stick is already stiff, trust what you can see. iienjoy is the kit where a larger mix can still make sense, because buyers are told to hold the pieces through that longer set. Below 25°C that listing says the cure takes longer. Heat in the cup, which Fuchoi and Limino reviewers mention, is a reason to mix less. Ventilate. Holamdo’s UK reviews are blunt about the smell.
deuvuo deuvuo 21-piece gold kit

Testsieger

deuvuo deuvuo 21-piece gold kit
8.8/10about £19.99

Place, then powder, before it skins

Seat one edge. Hold it. Then follow your kit’s powder note, because the listings do not agree. Plearty’s UK review says the gold has to be in the first application: powder dusted on afterwards did not show a line. CHIYU’s how-to allows a brush of extra powder on a line that is still slightly sticky, and warns that too much powder weakens the bond. Other notes say dust while the seam is tacky. One method for every ASIN is how a gold line disappears. If the powder will not stick, the glue has usually skinned. Mix a fresh thin coat for that one edge, then add powder while it is wet. deuvuo’s UK note is to apply powder swiftly, and one review puts the window at about a minute. Tape and a carving pen tidy a smear after the line has strength, not while it is liquid. The buying guide is where you choose a slower stated clock if this minute is too short.

Cure, then stop

Leave the piece for the full cure the listing states, often 24 hours, even when the surface feels hard in minutes. A hot drink, a dishwasher, and a microwave sit outside the careful manufacturer limit, and UK reviews of DecorRom, Vividye, and CHIYU already describe glue in tea or a repair that lifted in the machine. Display the piece. If you wash it, hand wash and keep the line out of a long soak. The best kintsugi kit page is for the next purchase. Wash skin with soap and water, and get medical help if resin is in an eye or a rash spreads. A valuable or archaeological ceramic belongs with a conservator. Real urushi and real gold belong with a lacquer specialist. Peter F. used the amazon.co.uk listings on 21 October 2026 and did not film a repair. A qualifying purchase can earn a commission at no extra cost to you.

Common questions

How much should I mix the first time?
Mix less than a pea of each part, equal amounts, for a single seam. Stir until the colour is even. The whole syringe sets in the cup on the fast kits, and UK reviews of DecorRom describe a window of 20 to 30 seconds once gold is mixed in. A spare plate is the right first piece. The mug you care about can wait until you have seen how quickly your own kit skins.
What if the bullet says 30 minutes and the glue skins in under a minute?
Use the glue you can see. DecorRom’s bullet says about 30 minutes and its UK reviews say seconds with the powder in. Holamdo states 2 minutes. iienjoy states 30 to 40 minutes and a 24-hour full cure, longer below 25°C. A 1-minute full-cure field on one Limino listing conflicts with how reviewers describe the job, so leave that figure out of your plan and give the piece the longer stated wait.
Do I stir the powder into the glue or dust it on afterwards?
Follow the kit you bought. Plearty’s UK review says the gold has to be in the first application, or the line does not show. CHIYU’s how-to allows a brush of extra powder on a slightly sticky line and warns that too much powder weakens the bond. Other epoxy notes say dust while the seam is still tacky. One method for every ASIN is how a gold line disappears.
The powder will not stick. What now?
The surface has usually skinned. A dry dusting on a cured film will not grab. Mix a fresh thin coat, smaller than the first, and put it on that one edge while it is still wet, then add powder immediately if your kit works that way. Do not flood the whole object. Tape, where the kit includes it, keeps the new line off the glaze.
One edge did not cure. Is the ratio wrong?
An uneven mix of resin and hardener is a usual cause of a line that stays soft. A verified Fuchoi review still had uncured glue after two days. Scrape that soft material away once you can do it without smearing it into the glaze, mix a new equal batch, and keep it small. If the pack warnings are unclear, or the glue heats sharply in the cup, stop and ventilate. A cold room can also slow a kit whose listing says the cure lengthens below 25°C.
When do I stop and get help?
Wash skin with soap and water, and get medical help if resin is in an eye or a rash spreads. Send valuable or archaeological ceramics to a conservator. Send a request for real urushi and real gold to a lacquer specialist. If a repair has already left glue in a drink, retire that piece from food. These boxes are modern resins with a short clock, and the how-to ends at the point where the object goes back on the shelf.

Related pages

Sources

Public UK sources and the amazon.co.uk listings compared on this page. Updated 22.10.2026.

  1. Japan House London: Kintsugi repair technique (retrieved 22.10.2026)
  2. legislation.gov.uk: assimilated Regulation (EC) No 1935/2004 (retrieved 22.10.2026)
  3. Food Standards Agency: food contact materials authorisation (retrieved 22.10.2026)
  4. HSE: chemical classification and labelling (retrieved 22.10.2026)
  5. CHIYU: bio repair kit (retrieved 22.10.2026)
  6. V&A shop: kintsugi gold repair kit (retrieved 22.10.2026)
  7. amazon.co.uk: kintsugi repair kit search (retrieved 22.10.2026)
  8. DermNet: epoxy resin contact allergy (retrieved 22.10.2026)