Metal Mirror » Bare Aluminum

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):	% R, BAL:
0.22	91.5
0.26	92.2
0.30	92.3
0.34	92.5
0.38	92.5
0.40	92.4
0.45	92.2
0.50	91.8
0.55	91.5
0.60	91.1
0.65	90.5
0.70	89.7
0.75	88.6
0.80	86.7
0.85	86.7
0.90	89.1
0.95	92.4
1.00	94.0
1.50	97.4
2.00	97.8
3.00	98.0
4.00	98.2
5.00	98.4
6.00	98.5
7.00	98.6
8.00	98.7
9.00	98.7
10.0	98.7
15.0	98.7
20.0	98.7

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Metal Mirror » Bare Aluminum