Avg. Hold Time: 4 to 6 weeks Ultra Hold adhesive is a lace wig glue that provides a super-strong attachment. Ultra Hold adhesive has a great super bond and is an excellent lace wig glue! Anyone who has had problems getting a long-lasting bond for their hairpiece using other adhesives will LOVE the strength and security offered by this product. Made from a waterproof, "non-yellowing" formula and comes in a dark-colored glass bottle with a brush-on applicator.