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Quartz glass is one of the most demanding of all glasses for use in technical applications. The single-component glass consists of pure silicon dioxide. As a starting material for our products, we use granules of natural or artificially produced crystals, which are melted at over 2000 °C to form amorphous quartz glass.
The quartz glass business was sold to SCHOTT AG in December 2024. The transaction is expected to be completed at the end of January 2025. Information on the products can temporarily be found here. Information about SCHOTT can be found here.
Materials
One of the most demanding glasses for technical applications made of pure silicon dioxide (SiO2). The clear version offers an unparalleled combination of thermal, mechanical and optical properties.
A homogeneous distribution of microbubbles in our fused silica reduces the optical properties in favor of high-performance shielding of thermal radiation.
The specific introduction of foreign elements (doping) into our quartz glasses enables the adjustment of special transmission properties.
Products
QSIL is a leading international manufacturer of high-purity quartz glass products. The worldwide recognition of the quality of our products illustrates the most important yardstick by which we measure ourselves: The appreciation of our customers.
Billets are the ideal starting material for the production of ring-shaped quartz glass products. Blocks, plates and round disks are available in clear or opaque quartz glass in many dimensions.
Thanks to our highly flexible two-stage production technologies, we can offer quartz glass tubes and rods in adaptable manufacturing dimensions and individual batch sizes.
In manual and mechanical machining processes, the production of quartz glass products according to the specifications and drawings of our customers is possible from single pieces to series products.
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Applications
Highest purity and reliability for your requirements.
Solutions for the use of light as a tool.
Innovative solutions for a wide range of industrial applications.
From nano to macro.
High-purity components from a single source.
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A world of possibilities -
with our high-tech expertise.
Gewerbering 8
98693 Ilmenau
Germany
