This component prevents the slider from coming off, but if it is misaligned or bent, it can catch the slider and halt its movement. Wipe away any excess with a clean cloth to prevent staining the fabric or leaving a greasy residue on your hands.
Use Pliers to Fix Stuck Zipper Top Slider and Tight Stop
You will typically need a pair of needle-nose pliers, a seam ripper, a soft cloth, and a household lubricant such as petroleum jelly, candle wax, or a silicone-based spray. Use a magnifying glass if necessary to check for tiny bends or fabric fibers caught in the teeth.
Using the seam ripper, carefully separate the stitches securing the top stop. Even a single thread pulled tightly across the path can create enough friction to stop the slider dead in its tracks.
How to Use Pliers to Fix a Top Slider That Is Too Tight
Apply a small amount of lubricant directly to the teeth and the slider channel. The location of the blockage provides the first clue.
More About How to fix a stuck zipper at the top
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