Bayer MaterialScience Makrolon? 1804 Polycarbonate
Subcategory: Polycarbonate; Polymer; Thermoplastic
Material Notes:
Key Features:
- Flame retarding agent
- Unfilled
- Flame retardant
- Light stabilized or stable to light
- U.V. stabilized or stable to weather
Suitable processing methods:
- Sheet extrusion
Information provided by Bayer Polymers.
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| Physical Properties | Metric | English | Comments | |
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| Density | 1.2 g/cc | 0.0434 lb/in? | ||
| Water Absorption | 0.3 % | 0.3 % | ||
| Moisture Absorption at Equilibrium | 0.12 % | 0.12 % | 23?C/50% R.H. | |
| Viscosity Test | 64 cm?/g | 64 cm?/g | Viscosity Number | |
| Melt Flow | 6.5 g/10 min | 6.5 g/10 min | (cm?/10 min.) 300?C/1.2 kg | |
Mechanical Properties |
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| Tensile Strength, Yield | 65 MPa | 9430 psi | ||
| Elongation at Break | Min 50 % | Min 50 % | Nominal Strain at Break | |
| Elongation at Yield | 6.5 % | 6.5 % | ||
| Tensile Modulus | 2.4 GPa | 348 ksi | ||
| Charpy Impact Unnotched | NB | NB | ||
| Charpy Impact, Unnotched Low Temp | NB | NB | at -30?C | |
| Impact Test | 60 J | 44.3 ft-lb | Puncture energy +23?C | |
| Impact Test | 65 J | 47.9 ft-lb | Puncture energy -30?C | |
| Tensile Creep Modulus, 1 hour | 2200 MPa | 319000 psi | ||
| Tensile Creep Modulus, 1000 hours | 1900 MPa | 276000 psi | ||
| Tear Strength, Total | 5600 N | 1260 lb (f) | Puncture maximum force +23?C | |
Electrical Properties |
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| Surface Resistance | Min 1e+015 ohm | Min 1e+015 ohm | ||
| Dielectric Constant | 3 | 3 | 1 MHz | |
| Dielectric Constant | 3.1 | 3.1 | 100 Hz | |
| Dielectric Strength | 32 kV/mm | 813 kV/in | ||
| Dissipation Factor | 0.0005 | 0.0005 | 100 Hz | |
| Dissipation Factor | 0.009 | 0.009 | 1 MHz | |
| Comparative Tracking Index | 275 V | 275 V | ||
Thermal Properties |
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| CTE, linear 20?C | 60 ?m/m-?C | 33.3 ?in/in-?F | Parallel | |
| Deflection Temperature at 0.46 MPa (66 psi) | 139 ?C | 282 ?F | ||
| Deflection Temperature at 1.8 MPa (264 psi) | 127 ?C | 261 ?F | ||
| Vicat Softening Point | 146 ?C | 295 ?F | 50?C/h 50N | |
| Glass Temperature | 148 ?C | 298 ?F | 10?C/min | |
| Flammability, UL94 | V-2 | V-2 | 3.0 mm UL Recognized | |
| Flammability, UL94 | V-2 | V-2 | 1.50 mm UL Recognized | |
| Oxygen Index | 32 % | 32 % | ||
Optical Properties |
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| Transmission, Visible | 80 % | 80 % | Manufacturer states transparent but does not quantify | |
Processing Properties |
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| Melt Temperature | 300 ?C | 572 ?F | Injection Molding | |
| Mold Temperature | 80 ?C | 176 ?F | Injection Molding | |
| Injection Velocity | 200 mm/sec | 7.87 in/sec | ||
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