The edge of your bag's flap has lifted by a millimetre, or a layer of leather is peeling away at the corner of your wallet. You want to close it before it gets worse. Gluing leather works well, but only in places where there was glue to begin with. An open seam is not something glue will fix.
What is the best leather glue?
For almost every repair on bags and small leather goods, contact adhesive is the right choice. Most contact adhesives are based on neoprene (polychloroprene), a rubber that stays flexible once dry. That's exactly what leather needs: it flexes, and the glue has to flex with it. An ordinary neoprene contact adhesive from a DIY shop will handle most repairs, and many tubes list leather as a suitable material. Leatherworkers often use dedicated leather glue from brands such as Renia, including water-based versions with hardly any smell. For a repair at home, a regular contact adhesive does the same job.
Contact adhesive works differently from most glues. You spread a thin layer on both surfaces, let it dry until it no longer feels tacky, and then press the parts together. They grab instantly. There's no sliding them into place afterwards, so line them up right first time.
Glues to avoid on leather
Superglue is what most people reach for, and for leather it's the worst option. It soaks deep into the fibres, sets rock hard and cracks as soon as the leather bends. On vegetable-tanned leather it also leaves a dark, glassy stain that never comes out. And if you later want a proper repair, there's a problem: you can't push a needle through cured superglue.
Wood glue and other white water-based glues don't stay flexible enough and leave rings on light leather. A hot glue gun lays down a thick, stiff bead that lets go after a few weeks. Two-part epoxy is for metal and stone, not for something that needs to bend.
Edge or seam: glue it or stitch it?
This is where it often goes wrong. On a bag, two layers of leather are usually glued together first and stitched afterwards. The glue keeps the layers flat, the thread carries the load. If an edge lifts between two lines of stitching, there was only glue there, and you can safely re-glue it. If the thread itself has broken, the seam is open and nothing is carrying the load any more. Glue won't hold that, certainly not on a handle or a side seam that the contents pull on.
| What you see | What to do |
|---|---|
| Edge of a flap or card slot has lifted, stitching intact | Glue it yourself with contact adhesive |
| Loose lining in a spot without a seam | Glue it yourself, thinly, so it doesn't show through |
| Corner protector or base edge coming away | Glue it yourself, then press firmly |
| Thread broken, seam open | Have it stitched, don't glue |
| Handle tearing away at the join | Take it to a leather repairer, this carries the weight |
| Zip coming away from the leather | Usually needs re-stitching, see below |
With a zip, it's nearly always a mix of glue and stitching. What you can do yourself is covered in the article on a broken bag zip.
Gluing leather in six steps
- Clean. Remove old glue, dust and dirt from between the layers with a toothpick or a thin blade. Old glue under new glue is the most common reason a repair fails.
- Roughen. Glue grips poorly on a smooth, finished surface. If the inside of the join has grain or a finish on it, scuff it very lightly with fine sandpaper. Only where it won't be seen.
- Mask. Tape off the visible surface around the repair with painter's tape. Contact adhesive on the grain of vegetable-tanned leather leaves a dark mark that's hard to shift.
- Apply thinly. Use a toothpick, a narrow spatula or a small brush to put a thin layer on both sides. More glue doesn't mean stronger, it means it squeezes out at the side later.
- Let it go tacky-dry. Wait until the glue no longer sticks when you tap it with a knuckle. Depending on thickness and temperature this is usually 10 to 40 minutes; follow what the tin says.
- Press. Line the parts up exactly and press them hard. Tapping with a rubber mallet or rolling with a rolling pin on a board works well. Then leave it for a day before loading the bag up again.
If a line of glue does squeeze out, let it dry first. Dry contact adhesive can often be rolled away with a fingertip or a piece of crepe rubber. Wiping it wet only smears it.
After gluing: finishing the edge
An edge that has been open is often a little frayed or discoloured on the outside. A painted edge can be touched up with edge paint in the same shade, a burnished edge with a little water and a wooden slicker. How that works, and why that edge says so much about a bag's quality, is explained in the piece on edge painting and edge finishing.
When not to do it yourself
Anything that carries weight belongs with someone who has a leather sewing machine: handles, shoulder straps, the fixings for rings and buckles. On a laptop bag like the Mason leather laptop bag, the whole load hangs from the handle joins, and a glued repair there won't last. A cobbler or leather repairer can often stitch it within a few days, and it will then last as long as the rest of the bag.
If a seam opens on a Beocca bag within the two-year warranty, don't glue it yourself, get in touch first. And if you'd like to read more about repair in general, the article on repairing, passing on and reusing leather explains why a stitched repair is almost always worth it.
