by SpecialChem

LEXAN™ Resin ML4249

LEXAN™ Resin ML4249 is an amorphous polycarbonate grade. Possesses high mechanical, optical, electrical and thermal properties. Offers impact resistance, outstanding dimensional stability and crystal clarity. Processed by injection blow molding and used for aircraft cabin and cargo compartment applications. FAR 25.853a compliant.

LEXAN™ Resin ML4249 Properties

Physical Properties

Value & Unit

Test Condition

Test Method

Specific Gravity

1.28

(23°C/50% relative humidity)

ASTM D792

Melt Mass-Flow Rate (MFR or MFI = Melt Flow Index or MI = Melt Index)

2.8 g/10min

(300°C/1.2 kgf)

ASTM D1238

Injection Molding Properties

Value & Unit

Test Condition

Test Method

Drying Temperature

120 °C

Shot to Cylinder Size

40 - 60 %

Drying Time

3 - 4 hr

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LEXAN™ Resin ML4249

LEXAN™ Resin ML4249 Properties

Physical Properties

LEXAN™ Resin ML4249 Processing Guidelines

Injection Molding Properties