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Pearlbond™ 550

Technical Datasheet | Supplied by Lubrizol

Pearlbond™ 550 by Lubrizol is a linear, polycaprolactone-copolyester polyurethane grade. Exhibits very high crystallization rate and a very high thermoplasticity level. Possible applications of Pearlbond™ 550 include production of reactive hot melts (HMPUR), typically used in automotive interior parts, bookbinding, furniture, textile and footwear.

Pearlbond™ 550 Properties

Physical Properties

Value & Unit

Test Condition

Test Method

OH Value

< 3 mg KOH/g

MQSA 47A

Crystallization

10 - 14 min

MQSA 12A

Melt Mass-Flow Rate (MFR or MFI = Melt Flow Index or MI = Melt Index)

10 - 30 g/10 min

(At 170°C, 2.16 kg)

ISO 1133

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