A Titebond–Aquadhere–Hide Glue Shootout!
There’s really no debate here: the gold standard is freshly made hot hide glue for traditional repairs. It’s a wonderful adhesive — strong, it pulls joints closer together as it gels, and most importantly, it’s reversible. That last point is crucial: violins and cellos need to be taken apart for future repairs and maintenance.

That said, there are occasions when modern glues earn their place. This is particularly true for structural repairs to broken timber, where hot hide glue might not be the most practical option. In these cases, CA (super glue), epoxies, and PVAs all have a role, depending on the value of the instrument, the type of break, and the repair budget.
A common (and hotly debated) example is a cello neck root Cello Repairs Brisbane (broken necks etc…)break. These breaks happen often because of the stresses on the cello neck, the length of the root, and the unfortunate fact that the grain direction is exactly the wrong way. Among luthiers here in Brisbane, there are several schools of thought:
- Cross-linked PVA glues (aliphatics)
- Traditional hot hide glue
- Reinforcement with a dowel
I’ve spoken to more than a few colleagues, and they all make excellent points. PVAs are known to creep over time, but they are less susceptible to shock — which is useful for student instruments that get bumped and knocked around. For those who go this route, the highest-grade PVAs — Titebond III or Selleys Aquadhere Exterior — are the go-to choices.
On the other hand, traditionalists swear by hot hide glue: it pulls joints tight, it’s easily reversible, and it doesn’t creep over time. As for dowels, opinions are split. Some say dowelling adds meaningful strength to the joint, while others argue it’s unnecessary and doesn’t contribute much.

A Little Backyard Science (no i wont be adding this to my list of academic publications)
So, I decided to do a quick experiment. Using scrap pieces of maple, a spring gauge, and a clamp, I prepared four small samples (about 1 cm² of glued area). I glued them up and progressively stressed them in a setup meant to mimic the lever action that occurs about halfway down a cello neck root.
Now, this was far from a perfect experiment — grain choice, glue area, and lack of repeated trials mean the data isn’t statistically significant. But still, the results lined up nicely with my own workshop experience.
There’s really no debate here: the gold standard is freshly made hot hide glue for traditional repairs. It’s a wonderful adhesive — strong, it pulls joints closer together as it gels, and most importantly, it’s reversible. That last point is crucial: violins and cellos need to be taken apart for future repairs and maintenance.

That said, there are occasions when modern glues earn their place. This is particularly true for structural repairs to broken timber, where hot hide glue might not be the most practical option. In these cases, CA (super glue), epoxies, and PVAs all have a role, depending on the value of the instrument, the type of break, and the repair budget.
The Winner
Selleys Aquadhere Exterior, especially when combined with dowelling, significantly improved the joint strength, wood tearout before glue failure too. The dowel although only tested on HHG improved strength of that joint – at least up to the shear strength of the dowel itself, which was all I tested.
Here’s a quick video and my back-of-the-envelope results.













