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ZERODUR® K20

LOW THERMAL EXPANSION FOR HIGH-TEMPERATURE APPLICATIONS

ZERODUR® K20, a low thermal expansion version of ZERODUR®, has been optimized to withstand higher application temperatures. The material is white in color and offers good IR transmittance of between 3.5 and 5 μm and homogeneous high reflectivity properties.
The non-porous ZERODUR® K20 exhibits good polishing abilities and excellent vacuum properties, and can be delivered as small high-precision optical components.