Used as a highly effective catalyst in polyurethane foam production, particularly in flexible slabstock foams. It promotes the blowing reaction (water-isocyanate) which generates carbon dioxide to form foam cells, while also supporting the gelation reaction (polyol-isocyanate) for polymer strength. Offers balanced catalytic activity, allowing for good foam rise and cure with minimal shrinkage. Commonly employed in formulations for mattresses, upholstery, and automotive seating due to its ability to deliver consistent foam quality and fine cell structure. Also found in some rigid foam systems where controlled reactivity and low odor are desired.