1.HLD-020 is a chemical zinc immersion process, mainly suitable for pre-treatment of aluminum and aluminum alloy plating.
2. Its role is to produce a layer of metal film with positive potential on the surface of aluminum and its alloys.
3. A series of decorative or functional plating or electroless plating of aluminum and its alloy surfaces is accomplished in conjunction with a suitable electroplating process.
Matching ratio: 200-300ml/L
Temperature: 15-30 ° C
One zinc dipping time: 60-90 seconds
Secondary zinc dipping time: 40-60 seconds
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