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Bare Aluminum (BAL)


Bare Aluminum offers greater than 86% reflectance from near UV to mid IR. Aluminum will slowly oxidize, resulting in a significant loss of reflectance in the UV, and slight scattering throughout the spectrum. Therefore, it is best if aluminum has a protective dielectric overcoat. A protective overcoat will also substantially improve abrasion resistance, so that the coating is less susceptible to damage during cleaning and handling.

 

RMI STANDARD SPECIFICATIONS
λ (µm)

0.22
0.26
0.30
0.34
0.38
0.40
0.45
0.50
0.55
0.60
0.65
0.70
0.75
0.80
0.85		 % R, BAL

91.5
92.2
92.3
92.5
92.5
92.4
92.2
91.8
91.5
91.1
90.5
89.7
88.6
86.7
86.7		 λ (µm)

0.90
0.95
1.00
1.50
2.00
3.00
4.00
5.00
6.00
7.00
8.00
9.00
10.0
15.0
20.0		 % R, BAL

89.1
92.4
94.0
97.4
97.8
98.0
98.2
98.4
98.5
98.6
98.7
98.7
98.7
98.7
98.7
metalcoatings01

 
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Due to their potential strategic high value, export of RMI products and related technical data may be subject to U.S. or other export licensing requirements.
Please consult your export control administrator or contact RMI for more information.

RMI Settles Export Case
  
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