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How to repair a plastic zipper

Author: Zili 2025-07-05 7 min read

If you have to contend with a stubborn plastic zipper, don’t worry! That's what we’re here for, to walk you through how to go about fixing a plastic zipper with a few simple steps so your child’s well-worn jacket doesn’t end up in the donation bag prematurely. So let's get started!

Figure out what's wrong with your zippered plastic bags

Before repairing a plastic zipper, the first thing to do is to find out what is wrong. The most common issue with plastic zippers is that stuck, missing or slider cannot close, etc. Take a look at the two rows of teeth on the interior of the zipper and see what you can find.

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How to fix a plastic zipper – List of supplies

Before you begin to repair you plastic zipper you are going to need to gather a few things:

  • Pliers

  • Replacement zipper teeth

  • Needle and thread

  • Zipper lubricant

The best way to fix a gummed-up plastic zipper? Can you squeeze an engine into a model car?

Don't try to pull at it, as it could break the teeth on your plastic zipper slider. Instead, there are a couple of steps you can try.

  1. If it won’t budge, you can wiggle the slider side-to-side to help get it to come loose.

  2. Use needle nose pliers to carefully grip the slider to slide up or down the teeth.

  3. A little zipper grease on the teeth makes them slide easier.

  4. To avoid making things worse, keep gently rocking the slider until the zipper comes unstuck, says Johnson.

How Do You Repair A Missing Tooth On A Plastic Zip How can you fix a broken tooth on a plastic zipper?

If your plastic zipper has ever had a tooth broken or lost, you can easily repair it. Here's how to do it:

  1. Take the broken tooth in your pair of pliers and pull the tooth out of the zipper.

  2. Pick up a new zipper tooth, and slide the tooth through the fabric by which the old tooth was receding.

  3. Sew the new tooth in with a needle and thread.

  4. Pull on the zip to check if the new tooth has been properly set in place.

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How to extend the life of your plastic zipper.

Taking care of your plastic zipper To keep your plastic zipper puller in the best conditions and look after its proper functioning, remember a few things: Tips to keep your zipper well maintained:

  1. Keep the zipper free of dust or any other dirt by wiping it with a damp cloth.

  2. Do not pull zipped part hardly as i t may damage or break.

  3. A few times a year, spray the teeth with some zipper lubricant (as in the zippers in your sleeping bag) to keep them sliding.

  4. Store the plastic zippered things in cool and dry place, prevent the rust.

By following these simple steps, you can mend a plastic zipper and keep it in good working order for a long time. Just be sure to take it slow and to be gentle with the zipper so you don’t accidentally do more damage. Take a little time and a few supplies to save money on costly repairs — and to take care of your favorite belongings! Zili is in the hope that you found the tutorial helpful for you to repair a plastic zip as well. Thank you for reading!

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