2008-09-09T13:35:17Z PunBB http://www.finishingtalk.com/community/topic733$2.html <p>Which system are you using? Are you using 23377 primer or 53030? I would suspect Iron phosphate over the zinc plating is not a suggested first step and a wash primer first would get you adhesion. Most are just a dust coat that shouldnt take that long to dry. Also make sure you are allowing enough time between the primer and topcoat steps. Most systems require a minimum of two to three hours between steps.</p> aperfectamf 2008-09-09T13:35:17Z http://www.finishingtalk.com/community/post1743.html#p1743 <p>I am lookng for solutions to an issue with Carc. paint adhesion over a substrate that is plated per ASTM B633-07 type 2 class is Fe/Zn 13.&#xa0; The process is plating and than zinc. phosphate, prime and topcoat with Carc. black paint.&#xa0; We are having issues with the primer an top coat not adhering to the substrate and I am concerned that the issue may be the zinc phosphate is attacking the colored chomate coating causing this issue.</p><p>Does anyone out there have any information or experience with this.</p> cjbaltes 2008-07-29T13:40:38Z http://www.finishingtalk.com/community/post1694.html#p1694