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Makroblend® DP7645

Technical Datasheet | Supplied by Covestro
Makroblend® DP7645 by Covestro is an impact modified, unreinforced, elastomer modified polycarbonate (PC) and polyethylene terephthalate (PET) blend. It provides paintability, impact-, chemical- and heat resistance. It is suitable for processing by injection molding. Makroblend® DP7645 is recommended for automotive radiator grills. It complies with UL 94 HB flame rating.
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Makroblend® DP7645
Technical Datasheet | Supplied by Covestro
REQUEST A SAMPLE ORIGINAL DATASHEET CONTACT SUPPLIER
Product Type
PC (Polycarbonate) > PC + PET
Product Status
COMMERCIAL
Applications/ Recommended for
  • Automotive > Under the hood - Radiator header tank
  • Automotive >> Under the hood - Radiator grills
  • Injection molding - thermoplastics
Key Features
  • Chemical resistance, Good
  • Heat Resistance, Good
  • Impact Resistance, Good
  • Impact modified
  • Paintable
  • Unfilled

Makroblend® DP7645 Properties

Physical Properties

Value & Unit
Test Condition
Test Method
Viscosity, Melt
600 Pa-s
(At 260°C, 165 s-1, Göttfert) 
Bayer Test
Melt Volume Flow Rate (MVR)
12 cm3/10 min
(At 260°C, 5 kg) 
ISO 1133
Linear Mold Shrinkage
0.6 - 0.8 %
(At 600bar) 
ISO 2577

Makroblend® DP7645 Processing Guidelines

Injection Properties

Value & Unit
Test Condition
Test Method
Injection Velocity
200 mm/s
Melt Temperature
260 - 280 °C
Barrel Rear Temperature
230 - 240 °C
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