How to Use Puzzle Glue

Let’s be honest: I don’t glue puzzles all that often. Most of the time, I take them apart and pass them on to a friend or donate them. But a few years ago, I made a YouTube video where I did glue a puzzle—and wow, the comments section was full of advice from experienced puzzlers who really know their stuff. So if you’re looking to preserve a puzzle you love, here’s the rundown… from someone who’s been there, and from the smart people who helped me do it better.

Step 1: Get Set Up (Don't Skip This)

• Protect Your Table: Lay down wax paper, parchment paper, or even a garbage bag underneath your puzzle. You do not want glue bonding your puzzle to your dining room table.
• Flatten Everything Out: Give it a once-over with your hands or a rolling pin to make sure all the pieces are flush. Any pieces sticking up will stay that way once glued.

Step 2: Pick Your Glue Style

There are two main options here:

• Liquid Puzzle Glue (like Mod Podge): This is the classic method—spread it over the top with a brush or included applicator.
• Glue Sheets: If the idea of brushing glue stresses you out, these peel-and-stick sheets go on the back and keep everything together with zero mess.

I've used both, but honestly? If you're nervous about messing up the front of your puzzle, glue sheets are a great place to start.

Step 3: Apply the Glue

If you're going the liquid route, pour a small amount right onto the front of the puzzle and spread it evenly. You want full coverage—especially over the seams—but you don’t want a puddle. Some tips from viewers that stuck with me:

• Thin layers are your friend. Too much glue can cause the puzzle to warp.
• Use a brush, squeegee, or even an old rewards card to spread it gently across the surface.
• Don’t forget the edges! They’re the first to lift if they don’t get enough glue.

Let it dry completely—most glues need at least a few hours, and some folks even recommend placing a clean sheet of wax paper and a light book on top during drying to help it stay flat.

Step 4: Frame It (or Not)

Once it’s dry and solid, you can:

• Mount it on foam board for extra support.
• Pop it in a frame (just make sure it fits—you’d be surprised how many puzzle sizes are just off from standard frames).
• Or skip the frame entirely and hang it using poster clips or command strips. I’ve used glue sheets and command strips on the back of a puzzle before, and two years later it’s still hanging strong.

My Take (and the Community’s Wisdom)

Like I said, I’m not a puzzle-gluer by default. But when I made my YouTube video on gluing puzzles, I learned a ton from the puzzling community. Here are some gems they shared in the comments:

• Use wax paper underneath to avoid disaster.
• Don’t oversaturate—glue warping is real.
• Let it dry fully before moving or framing.
• And don’t panic if it’s not perfect. It’s a puzzle, not a Picasso.

Whether you're saving a favorite design, gifting your finished puzzle to someone special, or just want to try something new, gluing a puzzle can be a fun way to preserve your hard work. Just don’t forget the wax paper.