What you need
- Puzzle glue (a clear, water-based glue sold for puzzles), or clear-drying craft glue such as Mod Podge
- A plastic spreader, an old gift card or a foam brush
- Wax paper or parchment paper bigger than the puzzle
- A rolling pin (optional) and something flat and heavy
Step by step
- Slide wax paper underneath. Work the paper under the finished puzzle a section at a time so the glue can't stick it to the table.
- Press the pieces flat. Roll gently over the puzzle with a rolling pin, or press with your palms, so every piece sits level and the seams close up.
- Pour a little glue in the middle. Start small; you can always add more.
- Spread it thin and even. Work from the center outward with the spreader, pushing glue into the seams. A thin coat dries clear; a thick one can stay cloudy or curl the puzzle.
- Wipe the edges. Clean any glue that runs off the sides before it dries.
- Let it dry. Follow the drying time on the bottle. Many glues need a couple of hours to dry to the touch and longer to cure completely.
- Optional second coat. For a stronger, glossier finish, add a second thin coat once the first is dry.
- Weigh it down overnight. Lay wax paper on top and put books on it to stop curling.
Glue the back instead?
If you don't want a shiny front, flip the puzzle (sandwich it between two boards and turn them together) and glue the back. The picture stays matte.
No glue? Use puzzle saver sheets
Adhesive puzzle saver sheets stick to the back of the puzzle with no liquid at all. They're less messy but you have to flip the puzzle first.
Then frame it
See our guide on how to frame a puzzle.