Gear Aid Zipper Lubricant is designed and formulated to protect and lubricate all types of watertight and airtight zippers. It lubricates and protects the zippers and zipper skirts on dry suits, survival suits, environmental suits, dry bags and more. Special ingredients inhibit rust and resist corrosion. The Zipper Lubricant helps protect against exposure to harmful chlorine, salt and pollutants. It will not flake or jam in extreme temperatures and contains no silicone or paraffin.