KNITTEL Coverglass is made of a colourless
borosilicate glass (D 263) with an optimum hydrolytic resistance HGB1. This
ultra thin glass is produced solely by only two special glass companies
world-wide and by patented down-draw-technology working with very expensive
platinum orifices for getting blister- and striae-free glass. The "ultra-thin
glass foils" are steadily controlled by the Quality Control Systems of our
supplier in terms of the chemical composition as well as glass thickness and
Through our consistent developments and automatisation of the process- and
cutting-technology, we have reached the optimum dimensional accuracy. Our
coverglass is manufactured in accordance to the international standard ISO
8255/1 and is ready to use. In order to prevent sticking, caused by stacking
flat coverglass, we use very fine glass particles to powder the surfaces.
KNITTEL coverglass is available in
twenty-six different dimensions, in squares as well as rectangular sizes and in
various glass thicknesses. Specials for coverslipping machines, circles and
customised dimensions are also in our product range.