I don't own a Harley, but as you said, they come with powdercoated heads now. I was told by a guy I do work for, that they get to maybe a little over 300 degrees. Have you ever done an MEK test on your pieces after you cooked them? Or even tried a destruction test with them? If you don't know, take a q-tip, and dip it in some MEK, then rub the part in a inconspicuous area 20 times, back and forth, a stroke forward, then a stroke back, counts as 1 time. The coating should not come off easily onto the Q-tip head. This would show a complete cure. Now about the destruction testing, I just try to beat on the coating and see how easily it dents or mars. I have no "real" way of comparing it, except for just what I deem acceptable. I like a finish that is VERY durable, and so far I have not seen that with the lower cure times. But yes, with the aluminum, you have t be careful with it, I have not had a problem with anything I have ever done, but you don;t want to find out the hard way either.
|