The following average emissivity values have been taken from various sources and are
presented for reference only. Please refer to the
EOI primer on emissivity for considerations you should make when using "emissivity".
| Black Coatings & Materials |
Emissivity |
| Anodize Black |
0.88 |
| Carbon |
| Filament
|
0.53 |
| Rough Plate
|
0.77 |
| Lampblack
|
0.84 |
| Carbon Black Paint NS-7 |
0.88 |
| Catalac Black Paint |
0.88 |
| Chemglaze Black Paint Z3O6 |
0.91 |
| Delrin Black Plastic |
0.87 |
| Ebanol C Black |
0.73 |
| Ebanol C Black-384 ESH* UV |
0.75 |
| EOI Mid-Temperature Black Coating
(Up to 200 °C) |
0.965 ± 0.005 |
| EOIHigh-Temperature Black Coating
(Up to 1400 °C) |
0.93 ± 0.02 |
| GSFC Black Silicate MS-94 |
0.89 |
| GSFC Black Paint 3l3-1 |
0.86 |
| Hughson Black Paint H322 |
0.86 |
| Hughson Black Paint L-300 |
0.84 |
| Martin Black Paint N-15O-1 |
0.94 |
| Martin Black Velvet Paint |
0.94 |
| 3M Black Velvet Paint |
0.91 |
| Paladin Black Lacquer |
0.75 |
| Parsons Black Paint |
0.91 |
| Polyethylene Black Plastic |
0.92 |
| Pyramil Black on Beryllium Copper |
0.72 |
| Tedlar Black Plastic |
0.90 |
| Velesat Black Plastic |
0.85 |
|
| White Coatings & Materials |
Emissivity |
| Barium Sulphate with Polyvinyl Alcohol |
0.88 |
| Biphenyl-White Solid |
0.86 |
| Catalac White Paint |
0.90 |
| Dupont Lucite Acrylic Lacquer |
0.90 |
| Dow Corning White Paint DC-007 |
0.88 |
| GSFC White Paint NS43-C |
0.92 |
| GSFC White Paint NS44-B |
0.91 |
| GSFC White Paint NS-74 |
0.92 |
| GSFC White Paint NS-37 |
0.91 |
| Hughson White Paint A-276 |
0.88 |
| Hughson White Paint A-276+lO36 ESH UV |
0.88 |
| Hughson White Paint V-200 |
0.89 |
| Hughson White Paint Z-202 |
0.87 |
| Hughson White Paint Z-202+1OOO ESH UV |
0.87 |
| Hughson White Paint Z-255 |
0.89 |
| Mautz White House Paint |
0.90 |
| 3M-401 White Paint |
0.91 |
| Magnesium Oxide White Paint |
0.90 |
| Magnesium Oxide Aluminium Oxide Paint |
0.92 |
| Opal Glass |
0.87 |
| OSO-H White Paint 63W |
0.83 |
| P764-lA White Paint |
0.92 |
| Potasiuml Fluorotitanate White Paint |
0.88 |
| Sherwin Williams White Paint (A8W11) |
0.87 |
| Sherwin Williams White Paint (F8WJ2O3O) |
0.82 |
| Sherwin Williams F8W2030 w Polasol V6V241 |
0.87 |
| Sperex White Paint |
0.85 |
| Tedlar White Plastic |
0.87 |
| Titanium Oxide White Paint with Methyl Silicone |
0.90 |
| Titanium Oxide White Paint with Potasium Silicate |
0.92 |
| Zerlauts S-13G White Paint |
0.90 |
| Zerlauts Z-93 White Paint |
0.92 |
| Zinc Orthotitanate with Potassium Silicate |
0.92 |
| Zinc Oxide with Sodium Silicate |
0.92 |
| Zirconium Oxide with 650 Glass Resin |
0.88 |
|
| Conductive Paints |
Emissivity |
| Brilliant Aluminum Paint |
0.31 |
| Epoxy Aluminum Paint |
0.81 |
| Finch Aluminum Paint 643-1-1 |
0.23 |
| Leafing Aluminum in Epon 828 |
0.36 |
| Leafing Aluminum (80-U) |
0.32 |
| NRL Leafing Aluminum Paint |
0.24 |
| NRL Leafing Aluminum Paint |
0.29 |
| Silicone Aluminum Paint |
0.30 |
| Dupont Silver Paint 48l7 |
0.49 |
| Chromeric Silver Paint 586 |
0.30 |
| GSFC Yellow NS-43-G |
0.90 |
| GSFC Green NS-53-B |
0.87 |
| GSFC Green NS-43-E |
0.89 |
| GSFC White NS-43-C |
0.92 |
| GSFC Green NS-55-F |
0.91 |
| GSFC Green NS-79 |
0.91 |
|
| Anodized Aluminum |
Emissivity |
| Black
|
0.82 |
| Black (2nd Sample)
|
0.86 |
| Blue
|
0.87 |
| Blue (2nd Sample)
|
0.82 |
| Brown
|
0.86 |
| Chromic
|
0.56 |
| Clear
|
0.76 |
| Clear (2nd Sample)
|
0.84 |
| Green
|
0.88 |
| Gold
|
0.82 |
| Plain
|
0.04 |
| Red
|
0.88 |
| Sulphuric
|
0.87 |
| Yellow
|
0.87 |
| Blue Anodized Titanium Foil |
0.13 |
|
| Metals and Conversion Coatings |
Emissivity |
| Aluminum |
Highly Polished
|
0.039-0.057 |
Commercial Sheet
|
0.09 |
Heavily Oxidized
|
0.20-0.31 |
Surface Roofing
|
0.216 |
| Alzac A-2 |
0.73 |
| Black Chrome |
0.62 |
| Black Copper |
0.63 |
| Black Irridite |
0.17 |
| Black Nickel |
0.66 |
| Brass |
Highly Polished
|
0.028-0.037 |
Dull Plate
|
0.22 |
| Buffed Aluminum |
0.03 |
| Buffed Copper |
0.03 |
| Constantan-Metal Strip |
0.09 |
| Copper |
Polished
|
0.023 |
Thick Oxide Layer
|
0.78 |
| Dow 23 on Magnesium |
0.67 |
| Ebanol C Black |
0.77 |
| Electroplated Gold |
0.03 |
| Electroless Nickel |
0.07 |
Iron, Polished
|
0.14-0.38 |
Cast Iron
|
0.60-0.70 |
Mild Steel
|
0.20-0.32 |
Iron Plate, Rusted Red
|
0.61 |
Sheet Sheet, Rough Oxide Layer
|
0.81 |
| Gold - Pure, Highly Polished |
0.018-0.035 |
| Irridite Aluminum |
0.11 |
| Inconel X Foil (1 mil) |
0.10 |
| Iron and Steel (Not Stainless) |
| Kannigen-Nickel Alloy |
0.08 |
Steel, Polished
|
0.066 |
| Lead |
Unoxidized
|
0.057-0.075 |
Gray Oxidize
|
0.28 |
| Molybdenum |
Filament
|
0.096-0.202 |
Massive, Polished
|
0.071 |
| Nickel |
Polished
|
0.072 |
Nickel Oxide
|
0.59-0.86 |
| Plain Beryllium Copper |
0.03 |
| Platinum Foil |
0.04 |
| Quartz, Rough, Fused |
0.93 |
| Stainless Steel |
Polished
|
0.11 |
Machined
|
0.14 |
Sandblasted
|
0.38 |
Machine Rolled
|
0.11 |
Boom-Polished
|
0.10 |
| Silver - Pure, Polished |
0.020-0.032 |
| Tantalum Foil |
0.05 |
| Tungsten Polished |
0.03 |
|
| Vapor Deposited Coatings |
Emissivity |
| Aluminum |
0.02 |
| Aluminum on Fiberglass |
0.07 |
| Aluminum on Stainless Steel |
0.02 |
| Chromium |
0.17 |
| Chromiumlon 5-mil Kapton |
0.24 |
| Germanium |
0.09 |
| Gold |
0.02 |
| Iron Oxide |
0.56 |
| Molybdenum |
0.21 |
| Nickel |
0.04 |
| Rhodium |
0.03 |
| Sliver |
0.02 |
| Titanium |
0.12 |
| Tungsten |
0.27 |
|
| Misc |
Emissivity |
| Asbesto, Board |
0.96 |
| Aluminum Oxide (Al2o3)-(12/4) on Buffed Alum Initial |
0.23 |
| Aluminum Oxide(Al2O3)(12/4) on Fused Silica |
0.24 |
| Brick |
Red, Rough, No Gross Irregularities
|
0.93 |
Fireclay
|
0.75 |
| Concrete Tiles |
0.63 |
| Glass |
Smooth
|
0.94 |
Pyrex, Lead, and Soda
|
0.95 |
Porcelain, Glazed
|
0.92 |
| GSFC Dark Mirror Coating - SiO-Cr-Al |
0.04 |
| GSFC Composite SiOx - Al2O3-Ag |
0.68 |
| Inconel with Teflon Overcoating -1 mil |
0.46 |
| Kapton Overcoating |
0.57 |
| Parylene C Overcoating |
0.34 |
| Roofing Paper |
0.91 |
| Silver Beryllium Copper Coating (AgBeCu) |
0.03 |
| Teflon Overcoating |
0.38 |
| Vespel Polyimide SP1 |
0.90 |
| Water |
0.95 |
|
| Tapes & Film |
Emissivity |
| Aclar Film (Aluminum Backing) |
|
1 mil
|
0.45 |
2 mil
|
0.62 |
5 mil
|
0.73 |
| Copper Foil Tape |
Plain
|
0.02 |
Sanded
|
0.04 |
Tarnished
|
0.04 |
| Kapton Film (Aluminum Backing) |
|
0.08 mil
|
0.24 |
0.15 mil
|
0.34 |
0.25 mil
|
0.45 |
0.50 mil
|
0.55 |
1.0 mil
|
0.67 |
1.5 mil
|
0.71 |
2.0 mil
|
0.75 |
3.0 mil
|
0.82 |
5.0 mil
|
0.86 |
| Kapton Film (Chromium-Silicon Oxide-Aluminum Backing (Green))
1.0 mil |
0.78 |
| 235-3M Black |
0.90 |
| 425-3M Aluminum Foil |
0.03 |
| 850-3M Mylar-Aluminum Backing |
0.59 |
| 7361-Mystic Alumimized Kapton |
0.03 |
| 7452- Mystic Aluminum Foil |
0.03 |
| 7800-Mystic Aluminum Foil |
0.03 |
| Y9360-3M Aluminized Mylar |
0.03 |
