McNett Zip Tech .5oz stick So Good, We use it to pre-lube every zipper on all of our products before shipping so that first trip is smoooooth. • High Performance • Lubricate and protects all zippers, including water resistant and waterproof zippers • Use on jackets, shelters, wetsuits, etc- Anything with a zipper. • Silicone and Parrifin Free High performance zippers should be lubbed at least one a year or even each season for shelter zippers under stress for long term reliability. Dirty zippers can be brushed clean with an old tooth brush before application is necessary.