Marienfeld dyeing troughs according to Coplin, high form

made of strong-walled soda-lime glass (pressed glass), for up to 10 slides 76x26 mm, with black screw cap made of urea 131.5 with PE foam insert 1 mm, thread GPI 48-500 (Art. No. 5458752) Glass staining articles made of strong-walled soda-lime glass have a relatively high coefficient of expansion. Due to the material, they must not be subjected to rapid temperature changes but must be heated slowly and cooled slowly to avoid stress cracks.