I bought some raw steel shackle parts for the Jeep and thought to go the extra mile and get them coated for rust prevention vs the normal rattle can job. I prepped them all nice and dropped them off at local zinc galvanizing place. Got them back today and look like shit! Bumpy, drippy, horrible uneven texture. They gave my parts a STD! So is this normal? I ground down the big drips and will paint them to hide the ugly.