AmBel Co. is now offering Excel Xpress with a clamping time of just "40 minutes." This Polyurethane Glue is available in cartridge form and can be used in any standard caulk dispenser. Also available: Excel Structan (cartridge form) and our liquid form; Excel One offered in 3 convenient sizes, 750mL, 5L and 20 L. Excel Polyurethane glues are available by phone and online.