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Somar Diazo was coated diazo sensitizer on the good dimensional stability's transparent polyester film, solder resist ink for printed circuit boards and dry film line in the exposure process, as the film image transfer's work negative film.
Characteristics:
1. High resolution.
2. Not easy to scrape and high solvent resistance.
3. Use a thickness of 7mil (0.175mm) polyester film base, good dimensional stability.
4. Durable, low aging rate, can reduce costs.
Diazo film for circuit board (yellow film)
