I get asked this a lot in the shop, usually right after someone watches a YouTube video about glues and starts wondering if they should switch over to hide glue for everything. So let’s get into it: how do hide glue and PVA actually compare, and does it matter which one you reach for?
The short answer on strength
When it comes to furniture making, strength is not the question we should be answering. Both hide glue and PVA form bonds that are stronger than the wood itself. In a properly cut and clamped joint, the wood fibers will fail before the glue line does, whether you use hide glue or PVA.
Where the two actually differ is creep resistance. Under sustained load over years, like a chair joint that’s been sat in every day for a decade, or a panel glue-up that’s fighting seasonal wood movement, PVA has a tendency to creep. It slowly deforms under stress. Hide glue holds its shape better over the long haul. That’s a big part of why it’s still the standard for violin making and for restoring antiques that need to survive another hundred years.
What each one is made from
Hide glue is collagen protein, pulled out of animal hides, hooves, and connective tissue through a boiling process. Typically, that’s cattle, though rabbit skin glue is a finer grade used mostly in gilding and conservation work. It comes as dry granules you mix with water and heat, or as a pre-mixed liquid with urea added so it doesn’t gel at room temperature.
PVA is polyvinyl acetate, a synthetic polymer made by polymerizing vinyl acetate monomer and suspending it in a water emulsion. It’s the same base chemistry as white school glue, just formulated with a higher solids content for wood bonding strength. The waterproof versions add cross-linking agents on top of that.
Why I’d reach for hide glue
- It’s reversible with heat and moisture, so repairs and disassembly don’t mean destroying wood fiber. That matters a lot if you’re doing restoration work or building something you expect to get repaired someday instead of replaced.
- Lower creep under sustained stress.
- Takes stain and finish more evenly at the glue line, since it doesn’t leave the same plastic film PVA does.
- Hot hide glue tacks fast enough that you can rub a joint together with no clamps in some cases.
The tradeoff is that hot hide glue needs a glue pot and gives you a short open time to work with. Liquid hide glue, the bottled stuff, fixes the open time problem but gives up a little heat and moisture resistance to do it.
Why I’d reach for PVA
- Ready straight out of the bottle. No pot, no mixing.
- Long shelf life.
- Decent open time for bigger glue-ups.
- Water-resistant and waterproof versions exist if the piece needs to handle weather.
- Cheap and easy to find.
The tradeoff is that it’s not reversible. If you need to break a PVA joint apart later, you’re usually tearing wood fiber to do it.
Titebond PVA vs. Titebond Liquid Hide Glue, specifically
Titebond II is rated up to 3,750 psi. Titebond doesn’t publish the same kind of headline psi number for their liquid hide glue. What you’ll find on their spec sheet for it is clamp pressure guidance, not a bond strength rating, so don’t mix those two numbers up. The closest comparison I’ve found is that liquid hide glue runs about as strong as Titebond Original, which itself comes in a little under Titebond II at 3,600 psi.
So on paper, Titebond II PVA is the stronger glue. But as I said above, that gap is mostly academic. In a well-fit joint, the wood gives out first either way. Titebond II’s extra strength comes bundled with cross-linking chemistry that also buys you water resistance, which liquid hide glue was never trying to compete on. The case for liquid hide glue isn’t peak psi; it’s creep resistance and the ability to take the joint apart later.
Which one should you use?
For me it comes down to what the piece needs to do over its life, not which bottle has the bigger number on the label. If it’s an outdoor piece or anything that’ll see moisture, PVA wins that argument easily. If it’s something that might need to be repaired down the road, or a joint that’s going to sit under constant stress for years, hide glue earns its keep. Most of the time, either one will outlast the wood around it.
I’m the owner of Benham Design Concepts, a mixed media art studio where I design and build custom furniture and other works of art using wood, glass, stone, and various metals.
In this blog, I talk about the art I create, my journey, and the things I learn along the way.