Comparison

PVA wood glue vs Polyurethane wood glue: which should you use?

The standard wood glue against the waterproof one. For most indoor work PVA wins on convenience.

The short answer

PVA for interior joinery, which is almost everything. Polyurethane when the joint will get wet, is outdoors, or involves oily timber or a material that is not wood.

Side by side

	PVA wood glue	Polyurethane wood glue
Strength	High	High
Flexibility	Semi rigid	Semi rigid
Gap filling	Low	Low
Water resistance	Not established	Waterproof
UV resistance	Poor	Moderate
How it cures	Solvent evaporation	Moisture cure
Clarity	Varies	Opaque
Typical working time	4 to 15 minutes	10 to 25 minutes
Typical full cure	24 hours	24 hours
Maximum temperature	60C	93C
Needs clamping	Yes	Yes
Two part	No	No
Removable later	No	No

Highlighted rows are where the two genuinely differ. These describe the families in general, not any particular product, so check the datasheet of whatever you buy.

Choose PVA wood glue when

Interior furniture, cabinetry and joinery. Clean, well fitted joints. You want easy clean-up with water, no foaming, no gloves and no stained fingers.

Choose Polyurethane wood glue when

Exterior joinery, garden furniture, anything that gets rained on. Oily hardwoods like teak or iroko. Bonding wood to metal, stone or plastic, which PVA cannot do.

What actually separates them

PVA dries by water leaving it, so it needs a porous surface both sides and a well fitted joint, and it creeps under sustained load. Polyurethane cures with moisture and foams, filling gaps but staining skin and needing clamping. On a good interior joint PVA is stronger than the wood; the choice is about water, not strength.

PVA wood glue

The full guide: what it is for, where it fails, and which materials it suits.

Polyurethane wood glue