by SpecialChem

Makroblend® M525

Technical Datasheet | Supplied by Covestro

Makroblend® M525 by Covestro is an impact modified, easy release, cold stable polycarbonate (PC) and polybutylene terephthalate (PBT) blend. It is suitable for processing by injection molding. It offers an exceptional low-temperature impact strength, impact resistance, good flowability and excellent chemical resistance.

It is used in medical applications.
It is tested according to ISO 10993-5 and ISO 10993-10 for contact with uncompromised skin only.
Makroblend® M525 complies with UL 94 HB flame rating.

Makroblend® M525 Properties

Physical Properties

Value & Unit

Test Condition

Test Method

Melt Volume Flow Rate (MVR)

21 cm³/10 min

(At 260°C, 5 kg)

ISO 1133

Linear Mold Shrinkage, Flow

0.7 - 0.9 %

(At 600bar)

ISO 2577

Linear Mold Shrinkage, Flow

0.1 - 0.2 %

(At 90°C, 1hr, Post-shrinkage)

ISO 2577

Injection molding Properties

Value & Unit

Test Condition

Test Method

Melt Temperature

280 - 320 °C

Barrel Rear Temperature

245 - 255 °C

Barrel Middle Temperature

250 - 260 °C

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Makroblend® M525

Makroblend® M525 Properties

Physical Properties

Makroblend® M525 Processing Guidelines

Injection molding Properties