Covestro Makrolon® DP1-1888 Polycarbonate, 20% Glass Filled

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Covestro Makrolon® DP1-1888 Polycarbonate, 20% Glass Filled (discontinued **)
Categories:	Polymer; Thermoplastic; Polycarbonate (PC); Polycarbonate, 20% Glass Filled
Material Notes:	ISO 7391-PC,MR,(,,)-09-3,GF20 Developmental product MVR (300 °C/1.2 kg) 10 cm³/10 min 20 % Glass fiber reinforced Milled fiber Medium viscosity Easy release good surface quality Injection molding - Melt temperature 310 - 330 °C Available in intense black colors only Precision parts in cameras As of 1 September 2015, Bayer MaterialScience was separated from Bayer AG and officially adopted its new name – Covestro.
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Physical Properties	Metric	English	Comments

Density	1.34 g/cc	0.0484 lb/in³	ISO 1183
Melt Density	1.14 g/cc @Temperature 300 °C	0.0412 lb/in³ @Temperature 572 °F
Moisture Absorption at Equilibrium	0.10 %	0.10 %	Similar to ISO 62
Linear Mold Shrinkage, Flow	0.0050 cm/cm	0.0050 in/in	ISO 294-4,2577
Linear Mold Shrinkage, Transverse	0.0030 cm/cm	0.0030 in/in	ISO 294-4,2577
Melt Flow	11 g/10 min @Load 1.20 kg, Temperature 300 °C	11 g/10 min @Load 2.65 lb, Temperature 572 °F	ISO 1133

Mechanical Properties	Metric	English	Comments
Tensile Strength at Break	55.0 MPa	7980 psi	ISO 527-1/-2
Elongation at Break	5.0 %	5.0 %	ISO 527-1/-2
Tensile Modulus	4.10 GPa	595 ksi	ISO 527-1/-2

Electrical Properties	Metric	English	Comments
Volume Resistivity	>= 1.00e+13 ohm-cm	>= 1.00e+13 ohm-cm	IEC 60093
Surface Resistance	>= 1.00e+15 ohm	>= 1.00e+15 ohm	IEC 60093
Dielectric Strength	36.0 kV/mm	914 kV/in	IEC 60243-1
Comparative Tracking Index	175 V	175 V	IEC 60112

Thermal Properties	Metric	English	Comments
CTE, linear, Parallel to Flow	50.0 µm/m-°C	27.8 µin/in-°F	ISO 11359-1/-2
CTE, linear, Transverse to Flow	55.0 µm/m-°C	30.6 µin/in-°F	ISO 11359-1/-2
Specific Heat Capacity	1.50 J/g-°C	0.359 BTU/lb-°F	Melt
Thermal Conductivity	0.211 W/m-K	1.46 BTU-in/hr-ft²-°F	Melt
Vicat Softening Point	144 °C	291 °F	50°C/h 50N; ISO 306
Flammability, UL94	V-2 @Thickness 2.00 mm	V-2 @Thickness 0.0787 in	IEC 60695-11-10
Oxygen Index	30 %	30 %	ISO 4589-1/-2

Processing Properties	Metric	English	Comments
Melt Temperature	300 °C	572 °F	Injection Molding; ISO 294
	310 - 330 °C	590 - 626 °F
Mold Temperature	80.0 - 130 °C	176 - 266 °F
	110 °C	230 °F	Injection Molding; ISO 10724
Ejection Temperature	140 °C	284 °F
Injection Velocity	200 mm/sec	7.87 in/sec	ISO 294

Descriptive Properties
Availability	Asia Pacific
	Europe
	India
	Near East/Africa
	North America
	South and Central America
Eff. thermal diffusivity (m²/s)	1.23E-07
Feature	Release agent
Form	Pellets
Process	Injection Molding
UL recognition	UL\lh\n

**
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PB09953 / 92793

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