Jim, I have been faced with the same problem. This method may help you. Coat the pot metal with three good (heavy) coats of the wrinkle paint, the secret here is to apply them evenly because the paint will wrinkle in proportion to the thickness of the paint. A portion that has more paint then the rest will cause an uneven wrinkle effect. I used black. Heat in an oven , one that is not in the house will save a lot of domestic problems. This leaves an awful smell in your house that is difficult to lie out of being the guilty person. Allow the paint to wrinkle, the more the better, and the thicker coats will cause more wrinkle than the thin coats. Let this dry for a couple of days or for a day in a warm sunny spot. After it is cured spray VERY light coats of lacquer, in your case probably the off white color, let each coat dry. Fash drying is not enough, the paint needs to be really dry. Keep adding these thin coats, thin enough so that the white interior paint does not bridge the wrinkles. By thin, I mean a dusting of paint, NOT thinned paint! Enough thin coats need to be applied to get the interior color, and it takes several coats. It can be done and the results will look as if the wrinkle paint was white. I have not had an issue with chipping. Hope this is of some help to you and there certainly may be much better methods, but this worked for me.
