by SpecialChem

Makrolon® 2258

Technical Datasheet | Supplied by Covestro

Makrolon® 2258 by Covestro is a low viscosity polycarbonate (PC) grade. It is suitable for ethylene oxide and steam sterilization. Exhibits easy release, high heat resistance, good toughness, good dimensional stability, high creep modulus and good electrical insulation properties.

Possesses good transparency, high impact strength, chemical- and hydrolysis resistance.
Provides durability, efficient reusability and energy and carbon dioxide emission savings.
Suitable for processing by injection molding.
Makrolon® 2258 is recommended for medical devices.
It is biocompatible according to ISO 10993-1 test requirements.

Makrolon® 2258 Properties

Thermal Properties

Value & Unit

Test Condition

Test Method

CTE, Linear, Normal to Flow

0.65x10^-4 /K

(At 23°C to 55°C)

ISO 11359-2

Resistance to Heat

136 °C

(Ball Pressure Test)

IEC 60695-10-2

UL RTI, Mechanical with Impact

115 °C

(At 1.5 mm)

UL 746B

Injection Molding Properties

Value & Unit

Test Condition

Test Method

Mold Temperature

80 °C

Drying Temperature

120 °C

Melt Temperature

280 °C

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Makrolon® 2258

Makrolon® 2258 Properties

Thermal Properties

Makrolon® 2258 Processing Guidelines

Injection Molding Properties