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-----Ni-Cr Plating on Diecastings Blistered
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Quickstart:
Plating on diecastings is troublesome because the substrate is often of insufficient quality. Porous castings or those with cold shuts ⇦ huh? will usually exhibit blistering. Unless the diecasting process is under very good control the plater may need to do 100% inspection before plating.
Diecastings generally need vibratory or other mechanical finishing before the chemical steps, and usually require copper plating before any other plating.
Q. Ni Cr Plating on Zinc Casting Part - Blister Observed in the part after 4 months
Coating - Copper Coating + Bright Nickel on Zinc casted part
- tamilnadu
September 17, 2025
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The blister problem after Ni/Chrome plate because of cleaning problem; do the water break test; after acid dip, rinse the part watch if the water drips down like oil. Or white paper towel wipe the part: if there is black residue on paper towel, the part is not cleaned right,
Popatbhai B. Patel
electroplating consultant - Roseville, Michigan
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