Galvanized buckets or tins go through a process that applies a zinc coating to steel or iron to prevent rusting. Before you paint a galvanized bucket you have to treat the piece. I started by washing down the steel with white vinegar and then used a degreasing soap - like Dawn. Then I used an etching primer, which is great for adhesion and prepped each bucket with one coat. Spray in a well ventilated area (outside) and allow your piece to dry and defume a bit. (They stink for awhile)
You can see the size of the big bucket on my kitchen table. It was huge!
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