Slow drain – frozen zinc

Very long items or very wide items often come out of the bath at a shallow angle. This means the zinc runs very slowly down the surface and freezes as it travels down the surface. When it freezes it shrinks and contracts forming the small undulating surface. It is most common on thinner hollow sections and platework as these cool down faster. This is acceptable and will offer better protection than normal.

lumpy, rough, un-even, thick, deposit

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