by SpecialChem

Makrolon® TC621 RE CQ

Technical Datasheet | Supplied by Covestro

Makrolon® TC621 RE CQ by Covestro is a partially bio-circular, flame-retardant polycarbonate (PC) grade. It offers high thermal conductivity. It is suitable for processing by injection molding. It is used in light components, LED heat sinks (metal replacement) and components for heat dissipation. Makrolon® TC621 RE CQ complies with UL 94 V-0 flame rating and is ISCC PLUS certified.

Makrolon® TC621 RE CQ Properties

Physical Properties

Value & Unit

Test Condition

Test Method

Viscosity, Melt

200 Pa-s

(At 300°C, 1000 s^-1)

ISO 11443-A

Viscosity, Melt

120 Pa-s

(At 330°C, 1000 s^-1)

ISO 11443-A

Linear Mold Shrinkage, Flow

130 - 160 °C

(At 60x60x2 mm)

ISO 294-4

Injection Properties

Value & Unit

Test Condition

Test Method

Melt Temperature

310 °C

Barrel Rear Temperature

270 - 290 °C

Barrel Middle Temperature

280 - 300 °C

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Makrolon® TC621 RE CQ

Makrolon® TC621 RE CQ Properties

Physical Properties

Makrolon® TC621 RE CQ Processing Guidelines

Injection Properties