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Makroblend® UT3907

Technical Datasheet | Supplied by Covestro
Makroblend® UT3907 by Covestro is an impact modified, UV-stabilized, elastomer modified polycarbonate (PC) and polybutylene terephthalate (PBT) blend with easy release. It is suitable for processing by injection molding. It provides impact resitance, high flowability, good impact strength and excellent chemical resistance. Makroblend® UT3907 complies with UL 94 HB flame rating.
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Makroblend® UT3907
Technical Datasheet | Supplied by Covestro
REQUEST A SAMPLE ORIGINAL DATASHEET CONTACT SUPPLIER
Product Type
PC (Polycarbonate) > PC + PBT
Product Status
COMMERCIAL
Applications/ Recommended for
Injection molding - thermoplastics
Key Features
  • Chemical resistance, Good
  • Flow, High
  • Impact modified
  • Impact Resistance, Good
  • UV-Stabilized

Makroblend® UT3907 Properties

Physical Properties

Value & Unit
Test Condition
Test Method
Melt Volume Flow Rate (MVR)
44 cm3/10 min
(At 260°C, 5 kg) 
ISO 1133
Linear Mold Shrinkage, Flow
0.7 - 0.9 %
(At 600 bar) 
ISO 2577
Linear Mold Shrinkage, Flow
0.1 - 0.2 %
(At 90°C, 1hr, Post-shrinkage) 
ISO 2577

Makroblend® UT3907 Processing Guidelines

Injection Properties

Value & Unit
Test Condition
Test Method
Injection Velocity
200 mm/s
Melt Temperature
250 - 270 °C
Barrel Rear Temperature
230 - 240 °C
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