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Adhesives Ingredients
The material selection platform
Adhesives Ingredients
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Pearlbond™ 503

Technical Datasheet | Supplied by Lubrizol
Pearlbond™ 503 by Lubrizol is a linear, polycaprolactone-copolyester polyurethane. Possesses a high crystallization rate and a very high thermoplasticity level. It is supplied in form of white spherical granules. Pearlbond™ 503 is used in formulations of reactive hot-melts in order to improve the crystallization speed.
Product Type
Polyurethanes > Thermoplastics (TPUs)
Chemical Composition
Polycaprolactone-copolyester polyurethane
Physical Form
Granules, Spherical
Product Status
Applications/ Recommended for
Adhesives > Reactive systems > Hot-Melts (HMPUr)
Labels/Agency Rating

Pearlbond™ 503 Properties


Value & Unit
Test Condition
Test Method
Melt Flow Index @ 170ºC, 2.16 Kg, ISO 1133
60 - 100 g/10 min
Density @ 20°C, ISO 2781
1.19 g/cm3
Melt Viscosity @ 130°C, ISO 1133
500 Pa.s

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