Snags are usually to blame when a zipper completely refuses to budge. If there are no visible obstructions in the zipper teeth, you may need to try lubricating the teeth instead.
You can also try dislodging the fabric from inside the teeth with the point of a safety pin. [3] X Research source Be careful not to wrench on the fabric too hard, or you may tear it.
If you don’t have any luck freeing the fabric from the zipper, your only option will be to take it to a tailor.
The less fabric there is in the way of the teeth, the less likely another snag is to occur. Keep an eye out for frayed edges around the zipper tape itself.
Graphite naturally makes a very effective dry lubricant. [5] X Research source
Only apply a light amount of pressure to avoid breaking the tip of the pencil. The loose graphite particles will coat the edges of the teeth, making it easier for them to lock and unlock.
Don’t attempt to force the zipper. This may result in damage to the fabric or the zipper itself.
If you’re still encountering resistance after applying a second coating of graphite, move on to a different method.
Some other options include wax candles, petroleum jelly, crayons and lip balm. Since so many different improvised lubricants can be effective, you should have a solution close at hand whether you’re at home, work or on the road. [9] X Research source
Do your best to keep the lubricant away from the fabric itself in order to prevent staining and discoloration. Use a separate tool, such as a cotton swab, to smear on messier substances like Vaseline or olive oil. If you’re using Windex, spray it over the entire zipper area, then wait a few minutes before testing the zipper. [11] X Research source
Lubricants help clear the teeth of built-up dust and dirt, which is the leading cause of stuck zippers on older items. [13] X Research source If the zipper is still uncooperative at this point, take it to an alterations shop to have it repaired or replaced.
Not only will a good cleaning remove lubricant residue from the item, it will also clean any remaining debris out of the zipper, renewing it and improving its performance for many more wears.
