Xccelerator Wax® is a natural-based wax with a soft feel for use on natural and synthetic bowstrings. It softens at a low temperature and saturates strings quickly. Odorless, waterproof, and vegan, Xccelerator Wax also works well to reduce friction on slides, wheels and rollers. Certified Crossbow Compatible. Contains 0.51oz (14.5 grams) Step 1: Start with a clean string: using a rag dipped in warm water, or by wrapping a serving thread around the string and moving it up and down remove dirt and old wax. Step 2: Warm the tube of wax by rolling it between your hands, remove the lid and push or twist the bottom to move the wax up in the tube. Apply wax liberally to bowstrings, rub wax into the strings fibers briskly using your fingers or a leather strip- as wax warms, it melts into string fibers.