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	Original Value	Comments

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

Mechanical Properties	Original Value	Comments
Tensile Strength at Break	55.0 MPa	ISO 527-1/-2
Elongation at Break	5.0 %	ISO 527-1/-2
Tensile Modulus	4100 MPa	ISO 527-1/-2

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

Thermal Properties	Original Value	Comments
CTE, linear, Parallel to Flow	50.0 µm/m-°C	ISO 11359-1/-2
CTE, linear, Transverse to Flow	55.0 µm/m-°C	ISO 11359-1/-2
Specific Heat Capacity	1.50 J/g-°C	Melt
Thermal Conductivity	0.211 W/m-K	Melt
Vicat Softening Point	144 °C	50°C/h 50N; ISO 306
Flammability, UL94	V-2 @Thickness 2.00 mm	IEC 60695-11-10
Oxygen Index	30 %	ISO 4589-1/-2

Processing Properties	Original Value	Comments
Melt Temperature	300 °C	Injection Molding; ISO 294
	310 - 330 °C
Mold Temperature	80.0 - 130 °C
	110 °C	Injection Molding; ISO 10724
Ejection Temperature	140 °C
Injection Velocity	200 mm/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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