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Plastic Phone Case Crack/Break Repair

Introduction

If your phone case has any cracks from wear and tear or is completely broken into an unusable condition, use this guide to repair it. Bonding agents, like epoxy, are strong enough to restore the structural integrity of protective phone cases. Rather than throwing it away and contributing to plastic waste, fixing phone cases can help keep landfills clean of toxic microplastics. Aside from providing a more economic solution, this repair guide also allows for the repair and reuse of damaged phone cases that would otherwise be discarded into the environment.

What you need

  1. Plastic Phone Case Crack/Break Repair, Plastic Phone Case Crack/Break Repair: step 1, image 1 of 3 Plastic Phone Case Crack/Break Repair, Plastic Phone Case Crack/Break Repair: step 1, image 2 of 3 Plastic Phone Case Crack/Break Repair, Plastic Phone Case Crack/Break Repair: step 1, image 3 of 3

    • Clean the cracked area of your phone case with a microfiber towel.

    Edit

  2. Plastic Phone Case Crack/Break Repair: step 2, image 1 of 2 Plastic Phone Case Crack/Break Repair: step 2, image 2 of 2

    • Sand down the area until smooth.

    Edit

  3. Plastic Phone Case Crack/Break Repair: step 3, image 1 of 3 Plastic Phone Case Crack/Break Repair: step 3, image 2 of 3 Plastic Phone Case Crack/Break Repair: step 3, image 3 of 3

    • Inject JB Weld epoxy into the provided mixing tray or a container of choice.

    • Use a disposable stick to mix the two elements into a homogeneous solution.

    Edit

  5. Plastic Phone Case Crack/Break Repair: step 4, image 1 of 2 Plastic Phone Case Crack/Break Repair: step 4, image 2 of 2

    • Use tape to hold the cracked or broken pieces firmly in place, ensuring the edges stay aligned maximizing contact.

    Edit

  6. Plastic Phone Case Crack/Break Repair: step 5, image 1 of 3 Plastic Phone Case Crack/Break Repair: step 5, image 2 of 3 Plastic Phone Case Crack/Break Repair: step 5, image 3 of 3

    • Grab a small stick or any disposable tool.

    • Generously apply the mixed epoxy along the crack. Make sure to get some epoxy on the internal broken edges.

    Edit

  7. Plastic Phone Case Crack/Break Repair: step 6, image 1 of 1

    • Once applied, wait 15 minutes for the epoxy to set.

    • Test epoxy strength.

    Edit

  8. Plastic Phone Case Crack/Break Repair: step 7, image 1 of 1

    • Remove the tape holding the phone case together after the epoxy has cured for long enough for the bonded pieces to stay together.

    Edit

  9. Plastic Phone Case Crack/Break Repair: step 8, image 1 of 2 Plastic Phone Case Crack/Break Repair: step 8, image 2 of 2

    • Apply epoxy to other side of phone case crack.

    Edit

  10. Plastic Phone Case Crack/Break Repair: step 9, image 1 of 3 Plastic Phone Case Crack/Break Repair: step 9, image 2 of 3 Plastic Phone Case Crack/Break Repair: step 9, image 3 of 3

    • Wait for 30 minutes for epoxy to cure fully before sanding.

    • Sand the bonded section until smooth.

    • Repeat on the inner side of phone case.

    Edit
Finish Line

Author

with 3 other contributors

StephenH

Member since: 04/14/25

169 Reputation

1 Guide authored

Badges: 2

Team

UC Davis, Team 1-6, Morris Spring 2025 Member of UC Davis, Team 1-6, Morris Spring 2025

UCD-MORRIS-S25S1G6

3 Members

1 Guide authored

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