KNITTEL Cover Slips are 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 waviness.
Through our consistent developments and automatisation of the process- and cutting-technology, we have reached the optimum dimensional accuracy. Our cover slips are manufactured in accordance with the international standard ISO 8255/1 and are ready to use. In order to prevent sticking, caused by stacking flat cover slips, we use very fine glass particles to powder the surfaces.
Big product range
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.