I kind of had similar results as o.p I haven't reached out to Adams as I got the graphene ceramic (small bottle silver lable) as a birthday gift, since I asked for it. I did however do a full correction over 24 hours of labor with a dual action polisher. I washed, clay, compound and polished before ceramic. I didnt realize I was missing the prep spray so I used a very small amount of isopropyl alcohol with distilled water in a spray bottle and wiped as I went... Then did the ceramic. I used the applicator silk pad. I did not get any rainbow at all. I should say it was about 60 degrees and low humidity, maybe that it why. It does seem to bead and feels smooth so figured no reason to inquire why it didn't rainbow anywhere, including windows and plastic. Car paint is a greyish silver. If it lasts throughout the year I'll be happy, if I start noticing it stops beading as well I'll reach out to Adams.
