Pearlbond 500 Polycaprolactone based thermoplastic polyurethane Merquinsa PU - Thermoplastic (TPU) ADHESIVE >> Reactive system >> Hot-Melt (HMPUr) Soluble in esters, ketones, xylene, toluene and chlorinated solvents PEARLBOND 500 is a linear, polycaprolactone polyurethane with an very high crystallization rate and a very high thermoplasticity level. PEARLBOND 500 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 very high crystallization rate and thermoplasticity level.