Dense Film Humidity Resistant Ultra-Broadband Spectrum Metallic UV-Enhanced Aluminum Mirror. Ultra-Broadband Spectrum: Reflects efficiently from 200 nm to 1200 nm, covering deep UV to near-infrared. Cost-Efficiency: Delivers performance at roughly one-third the cost of silver or gold coated mirrors. Low Polarization Sensitivity: Maintains consistent reflectivity for S and P polarized light at large angles. Superior Adhesion: Securely bonds to glass, fused silica, Zerodur, silicon, ceramics, and polymers.