By: James Jordan 5 Ways To Get That Zipper Operating Smooth Again! Lubricate the Zipper: Apply a small amount of lubricant like beeswax or petroleum jelly along the length of the zipper teeth to help it glide more smoothly. Clean the Zipper: Dirt and debris can cause zippers to stick, so clean the zipper with a mild soap and water solution and then dry it thoroughly. Use Pliers: Gently grip the slider with a pair of pliers and wiggle it up and down to loosen it. Be careful no