Materials with low thermal expansion (some extremely low). Typical uses are substrates, test flats, and mirrors. We have a large stock of low expansion and ultra low expansion materials.
We stock the following low expansion materials:
CDGM H-PZ-33, Corning Pyrex, Schott Borofloat, Schott Supremax,and others.
We stock the following ultra low expansion materials:
Corning ULE, Corning TSG, Ohara Clearceram, Schott Zerodur, and others.
We can select the materials we stock for:
Stress Birefringence, Striae, Bubbles/Inclusions