How to Glue a Wooden Chair

Wooden chairs tend to warp from heat, cold and age. If they sit next to a heat source during the winter months, they will weaken even quicker. When this happens, repair the chair using an expanding glue instead of throwing it away. Polyurethane glue works better than typical wood glue because it cures slowly and expands as it dries, filling all the cracks in the wood and allowing for a more solid repair.

Sandpaper or putty knife
Rag
Polyurethane glue
Clamp or belt
Drill
Syringe

Instructions

- 1
  Clean around the broken piece of wood and remove any remaining glue or debris that has stuck to the broken wood. Use sandpaper or a putty knife to clean the wood. Clean both sides of the wood.
- 2
  Wet a rag with plain water and dab it on all parts of the exposed wood.
- 3
  Spread a line of polyurethane glue along one side of the wood and put the pieces of wood together. Use a clamp or belt to hold the wood together while it cures. Leave the wood for five hours.
- 4
  Drill a thin hole, 5/8 inch wide, next to an unstable chair leg where it connects to the seat, Inject polyurethane glue into the hole using a syringe filled with glue. The glue will spread around the leg joint and solidify. Perform this step only if the chair needs more reinforcement than just gluing together broken pieces. Inject glue in all four legs if the chair is very unstable.

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