As with any applied product, it is 90% preperation and 10% application. The only thing I used it for is my Fenton Headers, I first baked them in an oven at 500 degrees for 30 minutes, let them cool and applied the Por-15 for exhaust, when it was still tacky, I applied the second coat, I let them dry for 2 days and baked them in the oven again at 500 for an hour. After a year of daily use, they still look like I put in on yesterday.
