How to Fix a Separated Shoe Sole in 10 Minutes

The Simple Fix for a Flapping Shoe Sole

We have all been there: you are walking down the street when you suddenly hear a rhythmic slapping sound. You look down, and your favorite boot or sneaker is literally coming apart at the seams, the sole peeling away from the upper shoe. This common issue, known as sole separation, happens when the manufacturer's glue dries out, flexes too much, or gets exposed to moisture.

Instead of tossing your shoes in the trash or paying a cobbler, you can permanently re-bond the sole yourself in just 10 minutes of active prep time. Here is how to do it right.

What You Will Need

• Shoe Adhesive: Shoe Goo, Barge Cement, or Gorilla Super Glue Gel (gel formula is crucial as it won't run).
• Rubbing Alcohol: For cleaning the surfaces.
• Sandpaper or an Emery Board: Medium grit (100 to 180 grit) to rough up the surfaces.
• Cotton Swabs or Cotton Balls
• Painter's Tape, Rubber Bands, or Heavy Books: To clamp the shoe while it cures.

Step 1: Clean and Prep the Gap

For glue to hold, the surfaces must be completely free of dirt, old adhesive, and moisture. Pull the flapping sole slightly away from the shoe to expose the gap. Dip a cotton ball or swab in rubbing alcohol and thoroughly wipe down both the bottom of the shoe upper and the top of the separated sole. Let it dry completely for two minutes. Do not skip this step—any lingering dust or oils will prevent the glue from bonding.

Step 2: Scuff the Surfaces

Glue needs texture to grip onto. Take your sandpaper or emery board and gently scuff up both sides of the separation (the rubber sole and the fabric or leather upper). You want to remove any glossy sheen and create a rough, textured surface. Once sanded, blow away any loose particles.

Step 3: Apply the Adhesive

Apply a thin, even layer of your chosen adhesive to both the bottom of the shoe and the top of the sole. If you are using a contact cement like Barge Cement, let it sit and become tacky for 2 to 3 minutes before pressing the pieces together. If you are using a gel super glue, you can proceed immediately to the next step. Tip: Use a toothpick to spread the glue into tight corners to ensure full coverage.

Step 4: Press and Clamp

Align the sole perfectly with the upper shoe and press them firmly together with your hands. Work your way from the inside of the gap to the outer edges to push out any air bubbles. Wipe away any excess glue that squeezes out with a damp paper towel.

To ensure a permanent bond, you must keep the area under pressure. Securely wrap the shoe with thick rubber bands or heavy-duty painter's tape. If the separation is on the heel or flat part of the sole, you can also place a heavy book inside the shoe and weigh the entire shoe down from the top. Let it sit undisturbed for at least 2 hours (24 hours is ideal for a full cure before heavy wear).