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Makrolon? 1881

Manufacturer: Covestro
Produced At: Europe / China
Product Category: Polycarbonate（PC）
Product No: Makrolon 1881
Product Quantity: 25KG / BAG
Product Features: Good Mold Release，Impact Modified，Low Viscosity，Ultrasonic Weldable

Product information

Makrolon? 1881

Polycarbonate

Covestro - Polycarbonates

Product Description:

MVR (300 °C/1.2 kg) 19 cm3/10 min; impact modified; improved ultrasonic weldability; low viscosity; UV stabilized; easy release; injection molding - melt temperature 280 - 320 °C; available in opaque colors only

Additive	Impact Modifier，UV Stabilizer
Features	Good Mold Release，Impact Modified，Low Viscosity，Ultrasonic Weldable
RoHS Compliance	RoHS Compliant
Appearance	Colors Available，Opaque
Processing Method	Injection Molding

Physical	Nominal Value	Unit	Test Method
Density (73°F)	1.20	g/cm3	ISO 1183
Apparent (Bulk) Density 2	0.64	g/cm3	ISO 60
Melt Mass-Flow Rate (MFR) (300°C/1.2 kg)	20	g/10 min	ISO 1133
Melt Volume-Flow Rate (MVR) (300°C/1.2 kg)	1.16	in3/10min	ISO 1133
Molding Shrinkage
Across Flow	0.50 to 0.70	%	ISO 2577
Flow	0.50 to 0.70	%	ISO 2577
Across Flow : 0.0787 in 3	0.70	%	ISO 294-4
Flow : 0.0787 in 3	0.65	%	ISO 294-4
Water Absorption			ISO 62
Saturation, 73°F	0.30	%
Equilibrium, 73°F, 50% RH	0.12	%
Hardness	Nominal Value	Unit	Test Method
Ball Indentation Hardness	16400	psi	ISO 2039-1

Mechanical	Nominal Value	Unit	Test Method
Tensile Modulus (73°F)	334000	psi	ISO 527-2/1
Tensile Stress			ISO 527-2/50
Yield, 73°F	8700	psi
Break, 73°F	8700	psi
Tensile Strain			ISO 527-2/50
Yield, 73°F	5.8	%
Break, 73°F	110	%
Nominal Tensile Strain at Break (73°F)	> 50	%	ISO 527-2/50
Flexural Modulus 4 (73°F)	334000	psi	ISO 178
Flexural Stress 4			ISO 178
73°F	13500	psi
3.5% Strain, 73°F	10200	psi
Flexural Strain at Flexural Strength 5 (73°F)	6.8	%	ISO 178
Impact	Nominal Value	Unit	Test Method
Charpy Notched Impact Strength 6			ISO 7391
-22°F, Complete Break	6.7	ft·lb/in2
73°F, Partial Break	29	ft·lb/in2
Charpy Unnotched Impact Strength			ISO 179/1eU
-76°F	No Break
-22°F	No Break
73°F	No Break
Notched Izod Impact Strength 7			ISO 180/A
-22°F, Complete Break	6.7	ft·lb/in2
73°F, Partial Break	33	ft·lb/in2
Multi-Axial Instrumented Impact Energy			ISO 6603-2
-22°F	40.6	ft·lb
73°F	36.9	ft·lb
Multi-Axial Instrumented Impact Peak Force			ISO 6603-2
-22°F	1300	lbf
73°F	1100	lbf

Thermal	Nominal Value	Unit	Test Method
Heat Deflection Temperature
66 psi, Unannealed	277	°F	ISO 75-2/B
264 psi, Unannealed	253	°F	ISO 75-2/A
Vicat Softening Temperature
--	291	°F	ISO 306/B50
--	293	°F	ISO 306/B120
Ball Pressure Test (273°F)	Pass		IEC 60695-10-2
CLTE			ISO 11359-2
Flow : 73 to 131°F	3.6E-5	in/in/°F
Transverse : 73 to 131°F	3.6E-5	in/in/°F
Thermal Conductivity 8 (73°F)	1.4	Btu·in/hr/ft2/°F	ISO 8302

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Makrolon? 1881

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