Product information "Recording ink, barograph ink, 20ml green"
Recording ink / barograph ink in five different colours for barographs, hydrographs, seismographs and other mechanical recording instruments, produced by Octopus Fluids. This barograph ink evaporates very slowly, i.e. it stays wet inside the barograph and on the fibre pen for a long time. It starts drying more quickly only when it gets in contact with the paper.
These high-quality recording inks for barographs, hydrographs and seismographs in five different colours provide a high colour intensity and clear strokes.
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