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Browning purpose:
(1) roughening the copper surface to increase the surface area in contact with the resin
(2) Increasing the wettability of copper against flowing resin
(3) Passivation of the copper surface to avoid adverse reactions
The main production materials: brown liquid MS100
Precautions:
The browning film is very thin, and it is easy to cause the problem of wiping. When operating, pay attention to the operation gesture.
Please send Email to kspcba@c-alley.com or call us through +86 13828766801 Or submit your inquiry by online form. Please fill out below form and attach your manufacturing files( PCB Gerber files and BOM List) if need quotation. We will contact you shortly.