Expanding the Boundaries of 3D Printing Technologies by Utilizing DBU in Rapid Prototyping Polyurethanes Abstract The integration of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) into rapid prototyping polyurethane materials has shown significant potential for enhancing the performance and versatility of 3D printed objects. This paper explores the chemical properties of DBU, its compatibility with polyurethane formulations, and the resulting...