Huntsman Polyurethanes New MDI technology improves the performance of one-component liquid membrane coatings for the construction industry. This 1K moisture-curing technology is the first product of its kind to meet market demand for an alternative to TDI (toluene diisocyanate)-based systems. The formula has been designed specifically for use in weatherproofing membranes for roofing, in total bridge decking systems and outdoor applications. Benefits include superior hard wearing properties and improved durability. Visit