Products

Makrolon® 2856

Makrolon® 2856

Manufacturer: Covestro
Produced At: Europe / China
Product Category: Polycarbonate（PC）
Product No: Makrolon 2856 
Product Quantity: 25KG / BAG
Product Features: Food Contact Acceptable、Good Mold Release，Medium Viscosity

Makrolon® 2856

Polycarbonate
Product Description:
MVR (300 °C/1.2 kg) 9.0 cm³/10 min; food contact quality; medium viscosity; easy release; injection molding - melt temperature 280 - 320 °C; available in transparent, translucent and opaque colors
Features 
  • Food Contact Acceptable，Good Mold Release，Medium Viscosity
RoHS Compliance 

  • RoHS Compliant

Appearance 
  • Clear/Transparent，Colors Available，Opaque，Translucent 
Processing Method 

  • Injection Molding

Physical
Nominal Value
Unit
Test Method
Density (73°F)
1.20
g/cm³
ISO 1183
Apparent (Bulk) Density 3
0.66
g/cm³
ISO 60
Melt Mass-Flow Rate (MFR) (300°C/1.2 kg)
10
g/10 min
ISO 1133
Melt Volume-Flow Rate (MVR) (300°C/1.2 kg)
0.549
in³/10min
ISO 1133
Molding Shrinkage



Across Flow
0.60 to 0.80
%
ISO 2577
Flow
0.60 to 0.80
%
ISO 2577
Across Flow : 0.0787 in 4
0.75
%
ISO 294-4
Flow : 0.0787 in 4
0.70
%
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
16700
psi
ISO 2039-1
Mechanical
Nominal Value
Unit
Test Method
Tensile Modulus (73°F)
348000
psi
ISO 527-2/1
Tensile Stress


ISO 527-2/50
Yield, 73°F
9430
psi

Break, 73°F
10200
psi

Tensile Strain


ISO 527-2/50
Yield, 73°F
6.2
%

Break, 73°F
130
%

Nominal Tensile Strain at Break (73°F)
> 50
%
ISO 527-2/50
Tensile Creep Modulus


ISO 899-1
1 hr
319000
psi

1000 hr
276000
psi

Flexural Modulus 5 (73°F)
348000
psi
ISO 178
Flexural Stress 5


ISO 178
73°F
14100
psi

3.5% Strain, 73°F
10600
psi

Flexural Strain at Flexural Strength 6 (73°F)
7.1
%
ISO 178
Films
Nominal Value
Unit
Test Method
Water Vapor Transmission Rate (73°F, 85% RH, 3.9 mil)
0.97
g/100 in²/24 hr
ISO 15106-1
Gas Permeation


ISO 2556
Carbon Dioxide : 73°F, 1.0 mil
16900
cm³/m²/bar/24 hr

Carbon Dioxide : 73°F, 3.9 mil
3800
cm³/m²/bar/24 hr

Nitrogen : 73°F, 1.0 mil
510
cm³/m²/bar/24 hr

Nitrogen : 73°F, 3.9 mil
120
cm³/m²/bar/24 hr

Oxygen : 73°F, 1.0 mil
2760
cm³/m²/bar/24 hr

Oxygen : 73°F, 3.9 mil
650
cm³/m²/bar/24 hr

Impact
Nominal Value
Unit
Test Method
Charpy Notched Impact Strength 7


ISO 7391
-22°F, Complete Break
7.6
ft·lb/in²

73°F, Partial Break
36
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 8


ISO 7391
-22°F, Complete Break
7.1
ft·lb/in²

73°F, Partial Break
33
ft·lb/in²

Multi-Axial Instrumented Impact Energy


ISO 6603-2
-22°F
47.9
ft·lb

73°F
44.3
ft·lb

Multi-Axial Instrumented Impact Peak Force


ISO 6603-2
-22°F
1420
lbf

73°F
1210
lbf

Thermal
Nominal Value
Unit
Test Method
Heat Deflection Temperature



66 psi, Unannealed
279
°F
ISO 75-2/B
264 psi, Unannealed
257
°F
ISO 75-2/A
Glass Transition Temperature 9
293
°F
ISO 11357-2
Vicat Softening Temperature



--
293
°F
ISO 306/B50
--
295
°F
ISO 306/B120
Ball Pressure Test (277°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 10 (73°F)
1.4
Btu·in/hr/ft²/°F
ISO 8302
RTI Elec (0.06 in)
257
°F
UL 746
RTI Imp (0.06 in)
239
°F
UL 746
RTI Str (0.06 in)
257
°F
UL 746


Products are widely used in plastic modification, automotive, construction, electrical and electronic, industrial, daily necessities and other fields


Consultation

Shanghai Langqi Plastic Materials Co., Ltd.   沪ICP备12022668号 公安机关备案号：31011202003696

展开