Desmodur E 744 Isocyanate Curative

Desmodur E 744 Isocyanate is an excellent room temperature curative for HTPB. It provides plenty of pot life and good physical properties. If you've been using PAPI or Isonate 143-L you'll be amazed at the difference! Use at the 13.1% concentration level with R-45HTLO with an OH value of .85 (hydroxyl equivalent weight of 1176.5). For the mathematically challenged that's 86.9% R-45HTLO (at .85 OH value), 13.1% E 744 (with no plasticizer). Use the Binder Calculator on the "Resources" page to adjust the formulation for other OH values and plasticizer percentages. Pot life is 2 - 3 hours, cure time is 3 - 5 days at room temperature. 8 ounce bottle.