by SpecialChem

Makroblend® KU2-7912/4

Technical Datasheet | Supplied by Covestro

Makroblend® KU2-7912/4 by Covestro is an unreinforced, impact modified, paintable, elastomer modified polycarbonate (PC) and polybutylene terephthalate (PBT) blend. It is suitable for processing by injection molding. It offers high toughness at low temperatures, impact- and good chemical resistance. It is used in automotive body panels. Makroblend® KU2-7912/4 complies with the ISO 7792-1 specification and UL 94 HB flame rating.

Makroblend® KU2-7912/4 Properties

Physical Properties

Value & Unit

Test Condition

Test Method

Viscosity, Melt

670 Pa-s

(At 260°C, 165 s^-1, Göttfert)

Bayer Test

Melt Volume Flow Rate (MVR)

16 cm³/10 min

(At 260°C, 5 kg)

ISO 1133

Linear Mold Shrinkage, Flow

0.7 - 0.9 %

(At 600bar)

ISO 2577

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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Makroblend® KU2-7912/4

Makroblend® KU2-7912/4 Properties

Physical Properties

Makroblend® KU2-7912/4 Processing Guidelines

Injection Properties