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tin protecting agent for metal
,post treatment chemical FF-7795
,tin corrosion protection chemical
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TypeTin Protecting Agent
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Temperature20-30℃
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Place of OriginCHINA
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Brand NameFENGFAN
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Model NumberFF-7795
FF-7795 Tin Protecting Agent
FF-7795 is a novel post-treatment process that is completely phosphate-free. It forms a thin, transparent, and flexible protective coating on the surface of tin. This layer effectively prevents metal surface discoloration/tarnishing under high humidity and steam aging conditions. It is primarily used in continuous reel-to-reel plating for semiconductor packaging and electronic connectors.
1. Process Features- Prevents tin corrosion in high humidity and elevated temperature environments.
- Forms a thin, flexible, and transparent coating that does not compromise solderability or other deposit properties.
- Highly economical in operation.
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Parameter Name |
Unit |
Operating Range |
Optimum Value |
|---|---|---|---|
|
FF-7795 |
ml/L |
40 – 100 |
80 |
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Temperature |
°C |
20 – 30 |
25 |
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Immersion Time |
s |
20 – 60 |
30 |
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