Wax 88 Meguiar’s Mold Release Wax #88. A blend of imported waxes specially formulated to provide the maximum number of releases per application. For fiberglass applications. Description. Meguiar's Universal Mold Release Wax is an exceptionally easy to use, high performance product with complete versatility. Excellent for use on plugs, new molds, production molds and even as a storage wax. Exceptionally easy to wipe off even months later. The only mold release wax that will actually increase the deep gloss created with #88 Machine Glaze.