Emissivity Values for Common Materials
[Emissivity Values Page 1] [Emissivity Values Page 2]
[Measured Normal Emissivities]
Material
Wavelength
Emit.
Asbestos: board  
0.96
Asbestos: fabric  
0.78
Asbestos: paper  
0.93
Asbestos: slate  
0.96
Brick: alumina
2-5.6m
0.68
Brick: common
2-5.6m
.81-.86
Brick: common, red  
0.93
Brick: facing, red
2-5.9m
0.92
Brick: facing, yellow
2-5.6m
0.72
Brick: fireclay  
0.85
Brick: fireclay  
0.75
Brick: fireclay  
0.59
Brick: masonry
5m
0.94
Brick: red  
0.90
Brick: waterproof
2-5.6m
0.87
Carbon: candle soot  
0.95
Carbon: graphite, filed surface  
0.98
Carbon: purified
8-14m
0.80
Cement:
8-14m
0.54
Charcoal: powder
8-14m
0.96
Chipboard: untreated
2-5.6m
0.90
Clay: fired 
8-14m
0.91
Concrete  
0.92
Concrete: dry
5m
0.95
Concrete: rough
2-5.6m
.92-.97
Enamel: laquer
8-14m
0.90
Fabric: Hessian, green  
0.88
Fabric: Hessian, uncolored
2-5.6m
0.87
Fiberglass  
0.750
Fiber board: porous, untreated
2-5.6m
0.85
Fiber board: hard, untreated
2-5.6m
0.85
Filler: white
2-5.6m
0.88
Firebrick
2-5.6m
0.68
Formica
6.5-20m
0.937
Glass
8-14m
0.92
Glass: chemical ware (partly transparent)
6.5-20m
0.97
Glass: frosted
8-14m
0.96
Glass: frosted  
0.70
Glass: frosted  
0.67
Glass: polished plate  
0.94
Granite: natural surface
5m
0.96
Graphite: powder
8-14m
0.97
Gravel
6.5-20m
0.28
Gypsum
8-14m
.085
Hardwood: across grain
2-5.6m
0.82
Hardwood: along grain
2-5.6m
.68-.73
Ice
8-14m
0.97
Iron: heavily rusted
2-5.6m
.91-.96
Lacquer: bakelite
8-14m
0.93
Lacquer: dull black
8-14m
0.97
Lacquer: white
8-14m
0.87q
Lacquer: white  
0.92
Lacquer: matte black  
0.97
Lacquer: shiny, black, on metal  
0.87
Lampblack
8-14m
0.96
Limestone: natural surface
5m
0.96
Mortar
2-5.6m
0.87
Mortar: dry
5m
0.94
Oil, lubricating (thin film on nickel base)    
Nickel base alone
 
0.05
Film thickness = 0.001
 
0.27
Film thickness = 0.002
 
0.46
Film thickness = 0.005
 
0.72
Thick coating
 
0.82
P.V.C.
2-5.6m
.91-.93
Paint: 3M, black velvet coating 9560 series optical black
3m
@1.00
Paint: 3M, black velvet coating 9560 series optical black 
10m
@1.00
Paint: Acme, quality spray enamel, #801 brilliant black
3m
.0959
Paint: Acme, quality spray enamel, #801 brilliant black
10m
0.945
Paint: Aquadag, 4 coats on copper aluminum  
0.490
Paint: aluminum   
0.450
Paint: Broma, alkyd enamel #113 light blue
3m
0.95
Paint: Broma, alkyd enamel #113 light blue
10m
0.960
Paint: Broma, alkyd enamel #102, gold leaf
3m
0.98
Paint: Broma, alkyd enamel #102, gold leaf 
10m
0.98
Paint: cadmium yellow  
0.33
Paint: chrome green   
0.70
Paint: Chromatone stabilized silver finish (Alumatone) 
3m
0.26
Paint: Chromatone stabilized silver finish (Alumatone)
10m
0.305
Paint: cobalt blue     
Paint: Dupont Duco #71 wrought iron black
3m
0.982
Paint: Dupont Duco #71 wrought iron black
10m
0.897
Paint: Dutch Boy, 46H47, National lead high heat black 
10m
0.90
Paint: Krylon, flat black 
3m
0.95
Paint: Krylon, flat black 
10m
0.956
Paint: Krylon, flat white #1502
3m
0.992
Paint: Kylon, flat white #1502
10m
0.989
Paint: Krylon, ultra flat black 
5m
0.97
Paint: Microbond, 4 coats on magnesium  
0.844
Paint, oil: average of 16 colors  
0.94
Paint: oil, black, flat 
2-5.6m
0.94
Paint: oil, black, gloss 
2-5.6m
0.92
Paint: oil, gray, flat 
2-5.6m
0.97
Paint: oil, gray, gloss 
2-5.6m
0.94
Paint: oil, various colors
8-14m
0.94
Paint: plastic, black 
2-5.6m
0.95
Paint: plastic, white 
2-5.6m
0.84
Paint: TiO2, gray  
0.870
Paint: TiO2, white  
0.940
Paper: black   
0.90
Paper: black, dull  
0.94
Paper: black, shiny
8-14m
0.90
Paper: cardboard box
5m
0.81
Paper: green  
0.85
Paper: red   
0.76
Paper: white
2-5.6m
0.68
Paper: white
8-14m
0.90
Paper: white bond  
0.93
Paper: yellow  
0.72
Paper: tar
8-14m
0.92
Pipes: glazed
2-5.6m
0.83
Plaster
2-5.6m
.86-.90
Plaster: rough coat  
0.91
Plasterboard: untreated
2-5.6m
0.90
Plastic: acrylic, clear
5m
0.94
Plastic: black
2-5.6m
0.95
Plastic: white 
2-5.6m
0.84
Plastic paper: red
2-5.6m
0.94
Plastic paper: white
2-5.6m
0.84
Plexiglass: Perpex
2-5.6m
0.86
Plywood
2-5.6m
.83-.98
Plywood: commercial, smooth finish, dry
5m
0.82
Plywood: untreated
2-5.6m
0.83
Polyproplene
2-5.6m
0.97
Porcelain: glazed
8-14m
0.92
Quartz
8-14m
0.93
Redwood: wrought, untreated
2-5.6m
0.83
Redwood: unwrought, untreated
2-5.6m
0.84
Rendering: gray
2-5.6m
0.92
Rokide A  
0.770
Rubber
8-14m
0.95
Rubber: stopper, black
5m
0.97
Sand  
0.90
Shellac: black, dull  
0.91
Shellac: black, shiny, on tin plate  
0.82
Shingles: asphalt, sm, ceramic coated    
Skin, human  
0.98
Snow
8-14m
0.80
Soil: dry  
0.92
Soil: frozen
6.5-20m
0.93
Soil: saturated with water  
0.95
Styrofoam: insulation
5m
0.60
Tape: electrical, insulating, black
5m
0.97
Tape: masking
5m
0.92
Tile: floor, asbestos
5m
0.94
Tile: glazed
2-5.6m
0.94
Varnish: flat 
2-5.6m
0.93
Wallpaper: slight pattern, light gray
2-5.6m
0.85
Wallpaper: slight pattern, red
2-5.6m
0.90
Water:
8-14m
0.98
Water: distilled  
0.98
Water: ice, smooth   
0.96
Water: frost crystals  
0.98
Water: snow  
0.85
Wood: oak, planed  
0.90
Wood: paneling, light finish  
0.87
Wood: planed
8-14m
0.85
Wood: spruce, polished, dray
5m
0.86