OS-473 is a 35% carbonate solution used to develop semi-aqueous and aqueous dry films as well as liquid or dry film photoimageable solder masks. Water with hardness in excess of 300 ppm (as CaCO3) can be used with OS-473 without the formation of water scale. This greatly reduces the need for maintenance of the spray equipment.
OS-473 Hard Water Tolerant Developer
Description
OS-473 is a 35% carbonate solution used to develop semi-aqueous and aqueous dry films as well as liquid or dry film photoimageable solder masks. Water with hardness in excess of 300 ppm (as CaCO3) can be used with OS-473 without the formation of water scale. This greatly reduces the need for maintenance of the spray equipment.
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