LEXAN™ Copolymer ML7664

Identification & Functionality

Additives Included

Heat Stabilizer,

Mold Release Agent

Polymer Name

Polycarbonate-Siloxane Copolymer

Plastics & Elastomers Functions

Resin

Technologies

Plastics

Product Families

Plastics — Engineering & Specialty Polymers

High Performance Thermoplastics,

Polycarbonates

Features & Benefits

Materials Features

Good Mold Release,

Heat Stabilized,

High Impact Performance,

High Impact Resistance,

Unreinforced

Applications & Uses

Markets

Automotive & Transportation,

Consumer Goods,

Electrical & Electronics,

Industrial

Applications

Consumer Goods — Appliances & Electronics

Automotive & Transportation — Automotive

Interior

Electrical & Electronics — Devices & Assemblies

Consumer Electronics,

Displays,

Lighting

Consumer Goods — Housewares

Industrial — Military & Defense

Advanced Materials

Consumer Goods — Sports & Recreation

Plastics & Elastomers End Uses

Automotive Interior Parts,

Cell Phones,

Computer Components,

Consumer Applications,

Displays,

Electrical Components,

Electrical/Electronic Applications,

Exercise Equipment,

Heavy Truck,

Home Appliances,

Home Decoration,

Home Decors,

Lighting Applications,

Military Applications,

Sporting Goods,

Tablets,

Water Management

Plastics & Elastomers Processing Methods

Profile Extrusion

Properties

Color

Opaque

Mechanical Properties

	Value	Units	Test Method / Conditions
Tensile Stress (Yield, Type I, 50 mm/min) ¹¹	60	MPa	ASTM D638
Tensile Stress (Break, Type I, 50 mm/min) ¹¹	56	MPa	ASTM D638
Tensile Strain (Yield, Type I, 50 mm/min) ¹¹	6	%	ASTM D638
Tensile Strain (Break, Type I, 50 mm/min) ¹¹	86	%	ASTM D638
Tensile Modulus (at 5 mm/min) ¹¹	2200	MPa	ASTM D638
Flexural Stress (Yield, 1.3 mm/min, 50 mm span) ¹¹	97	MPa	ASTM D790
Flexural Modulus (at 1.3 mm/min, 50 mm span) ¹¹	2300	MPa	ASTM D790
Tensile Stress (Yield, 50 mm/min) ¹¹	59	MPa	ISO 527
Tensile Stress (Break, 50 mm/min) ¹¹	59	MPa	ISO 527
Tensile Strain (Yield, 50 mm/min) ¹¹	6	%	ISO 527
Tensile Strain (Break, 50 mm/min) ¹¹	76	%	ISO 527
Tensile Modulus (at 1 mm/min) ¹¹	2300	MPa	ISO 527
Flexural Stress (Yield, at 2 mm/min) ¹¹	90	MPa	ISO 178
Flexural Modulus (at 2 mm/min) ¹¹	2100	MPa	ISO 178

Physical Properties

	Value	Units	Test Method / Conditions
Specific Gravity ¹¹	1.19	—	ASTM D792
Mold Shrinkage (flow, 3.2 mm) ʰ ¹¹	0.6 - 1	%	SABIC method
Melt Flow Rate (at 300°C, 1.2 kgf) ¹¹	2.7	g/10 min	ASTM D1238
Density ¹¹	1.19	g/cm³	ISO 1183
Water Absorption (at 23°C, saturated) ¹¹	0.35	%	ISO 62-1
Moisture Absorption (at 23°C, 50% RH) ¹¹	0.15	%	ISO 62
Melt Volume Rate (at 300°C, 1.2 kg) ¹¹	2	cm³/10 min	ISO 1133

Thermal Properties

	Value	Units	Test Method / Conditions
Vicat Softening Temperature (Rate B/50) ¹¹	144	°C	ASTM D1525
Vicat Softening Temperature (Rate B/50) ¹¹	143	°C	ISO 306
Heat Deflection Temperature (at 1.82 MPa, 3.2mm, Unannealed) ¹¹	127	°C	ASTM D648
Coefficient of Thermal Expansion (at -40°C to 40°C, flow) ¹¹	0.00007	1/°C	ASTM E831
Coefficient of Thermal Expansion (at -40°C to 40°C, flow) ¹¹	0.00007	1/°C	ISO 11359-2
Coefficient of Thermal Expansion (at -40°C to 40°C, xflow) ¹¹	0.00007	1/°C	ASTM E831
Coefficient of Thermal Expansion (at -40°C to 40°C, xflow) ¹¹	0.00007	1/°C	ISO 11359-2
Vicat Softening Temperature (Rate B/120) ¹¹	145	°C	ISO 306
Heat Deflection Temperature/Af (at 1.8 Mpa, Flatw 80*10*4, sp=64mm) ¹¹	125	°C	ISO 75/Af

Processing Information (Profile Extrusion)

	Value	Units	Test Method / Conditions
Drying Temperature ¹⁰	120	°C	—
Drying Time ¹⁰	2 - 4	Hrs	—
Melt Temperature ¹⁰	280 - 300	°C	—
Barrel - Zone 1 Temperature ¹⁰	240 - 280	°C	—
Barrel - Zone 2 Temperature ¹⁰	260 - 290	°C	—
Barrel - Zone 3 Temperature ¹⁰	260 - 290	°C	—
Barrel - Zone 4 Temperature ¹⁰	260 - 290	°C	—
Hopper Temperature ¹⁰	100 - 120	°C	—
Adapter Temperature ¹⁰	270 - 300	°C	—
Die Temperature ¹⁰	260 - 290	°C	—
Calibrator Temperature ¹⁰	80 - 100	°C	—

Impact Properties

	Value	Units	Test Method / Conditions
Izod Impact (Notched, at 23°C) ¹¹	847	J/m	ASTM D256
Izod Impact (Notched, at -30°C) ¹¹	710	J/m	ASTM D256
Instrumented Dart Impact Total Energy (at 23°C) ¹¹	72	J	ASTM D3763
Izod Impact (Notched, 80*10*4, at 23°C) ¹¹	64	kJ/m²	ISO 180/1A
Izod Impact (Notched, 80*10*4, at -30°C) ¹¹	54	kJ/m²	ISO 180/1A
Charpy Impact (at 23°C, V-notch Edgew 80*10*4 sp=62mm) ¹¹	77	kJ/m²	ISO 179/1eA

Note

• ʰ Measurements made from laboratory test coupon. Actual shrinkage may vary outside of range due to differences in processing conditions, equipment, part geometry and tool design. It is recommended that mold shrinkage studies be performed with surrogate or legacy tooling prior to cutting tools for new molded article.
• ¹⁰ Processing parameters are only mentioned as general guidelines. These may not apply or may need adjustment in specific situations.
• ¹¹ The information stated on Technical Datasheets should be used as indicative only for material selection purposes and not be utilized as specification or used for part or tool design.

 

Packaging & Availability

Regional Availability

• Asia