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PCB Fabrication Chemicals
OS-473 Hard Water Tolerant Developer
OS-473 Hard Water Tolerant Developer Image

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 TDS

OS-490 Hard Water Tolerant Developer
OS-490 Hard Water Tolerant Developer Image

OS-490 is a more concentrated version of OS-473 utilizing only Potassium Carbonate to develop semi-aqueous and aqueous dry films as well as liquid or dry film photoimageable solder masks. OS-490 uses the same cleaning agent used in OS-473.

OS-490 TDS

OS-444 Hard Water Tolerant Concentrate
OS-444 Hard Water Tolerant Concentrate Image

OS-444 is a concentrated developer solution utilizing pH booster which offers extended life to the developer. OS-444 offers 3 times the life versus the OS-490 developer solution.

OS-444 TDS

PCB Fabrication Chemicals
OS-473 Hard Water Tolerant Developer Image
OS-473 Hard Water Tolerant Developer
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. Wa... Read More
OS-490 Hard Water Tolerant Developer Image
OS-490 Hard Water Tolerant Developer
OS-490 is a more concentrated version of OS-473 utilizing only Potassium Carbonate to develop semi-aqueous and aqueous dry films as well as liquid ... Read More
OS-444 Hard Water Tolerant Concentrate Image
OS-444 Hard Water Tolerant Concentrate
OS-444 is a concentrated developer solution utilizing pH booster which offers extended life to the developer. OS-444 offers 3 times the life versus... Read More

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