Reaxis®  C739P50

REAXIS® C739P50 is a catalyst used for curing a wide selection of solventborne polyurethane-based formulations. REAXIS® C739P50 exhibits a high selectivity for the NCO/OH reaction. REAXIS® C739P50 is supplied as a 50% active catalyst in polyethylene glycol. REAXIS® C739P50 can be supplied in other diluents.

For more information, we invite you to read our technical bulletins on Novel Bismuth Complexes for Polyurethane Catalysis and Strategies for Improving Back-End Reactivity of Bismuth Carboxylate Catalysts.

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Technical Information

Typical Specifications

Parameter Range
Bismuth Content (%) 19.0 - 21.0
Density (g/ml) 1.3 - 1.6
Color (Gardner Number) 12 Max

Package & Storage


  • 44 lb (20 kg) plastic pail


REAXIS® C739P50 should be stored in the original packaging. The container should be closed tightly after each use to maximize product shelf life. The material should be stored so as to prevent freezing.

Safety and Handling

Before use of Reaxis products please refer to the relevant Safety Data Sheet (SDS) for safety and toxicological data as well as for the information on proper transportation, storage, and use. SDSs are available by request via our web site, contacting your local representative, or emailing direct to

This information is provided to the best of our knowledge but without obligation. Reaxis is not liable for any incorrect or missing information. This data sheet becomes invalid upon publication of a new version. Please contact us for the latest version.

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