The Spartite® Mast Wedge Replacement System kit is the perfect solution to secure and seal a mast at deck level. Spartite® helps keep the mast up and the water out! Spartite® is a pre-measured two-part polymer poured into the cavity between the mast and the partners while the mast is in the boat. Comes with complete instructions and materials to build a simple mold out of even the most complex partners or mast collar. Spartite® makes a one-piece perfect fitting mast chock that replaces archaic wedges.