Tiger "Insta-Cure+" glue bonds in 5-15 seconds. It fills gaps, and is great for attaching tips to ferrules. It is a powerful cyanoacrylate-based adhesive. With Tiger Glue, you don't need to use a tip clamp. The large bottle (one full ounce!) is enough to do hundreds of tip replacements, and is handy for all sorts of general repairs. Tiger Glue is one of their favorite products.