by SpecialChem

Makrolon® TC421 RE CQ

Technical Datasheet | Supplied by Covestro

Makrolon® TC421 RE CQ by Covestro is a partially bio-circular, flame-retardant polycarbonate grade with high thermal conductivity. It is processed by injection molding. Makrolon® TC421 RE CQ is used in light components, LED heat sinks (metal replacement) and components for heat dissipation. It complies with UL 94 V-0 flame rating. Makrolon® TC421 RE CQ is ISCC PLUS certified.

Makrolon® TC421 RE CQ Properties

Physical Properties

Value & Unit

Test Condition

Test Method

Viscosity, Melt

150 Pa-s

(At 300°C, 1000 s^-1)

ISO 11443-A

Viscosity, Melt

90 Pa-s

(At 330°C, 1000 s^-1)

ISO 11443-A

Linear Mold Shrinkage, Flow

0.1 - 0.2 %

(At 60x60x2 mm)

ISO 294-4

Injection Properties

Value & Unit

Test Condition

Test Method

Melt Temperature

300 °C

Barrel Rear Temperature

260 - 280 °C

Barrel Middle Temperature

270 - 290 °C

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Makrolon® TC421 RE CQ

Makrolon® TC421 RE CQ Properties

Physical Properties

Makrolon® TC421 RE CQ Processing Guidelines

Injection Properties