We offer a range of products and services for the ameteur telescope enthusiast such as grinding powders, polishing powders and compounds.
We offer Telescope Blanks made from SCHOTT Suprax Low Expansion material. These can be supplied either 'as cast' or ground finish - in stock for immediate delivery in selected sizes. Custom sizes available on request.
Sometimes referred to as PYREX, LE, borosilicate or Borofloat, these SUPRAX Blanks are of the highest quality
300mm Diameter & 50mm thick make these the perfect substrate for a for Low expansion Telescope Mirror blank