Pearlbond DIPP-523 Polycaprolactone based thermoplastic polyurethane Merquinsa PU - Thermoplastic (TPU) ADHESIVE >> Reactive system >> Hot-Melt (HMPUr) Soluble in esters, ketones, xylene, toluene and chlorinated solvents PEARLBOND DIPP-523 is a linear, polycaprolactone polyurethane with an extremely high crystallization rate and a very high thermoplasticity level. PEARLBOND DIPP-523 can be added to formulations of REACTIVE HOT-MELTS, in order to improve the crystallisation speed. Linear, polycaprolactone polyurethane. Used in formulations of reactive hot-melts to improve crystallisation speed. Possesses extremely high crystallization rate and very high thermoplasticity level.