Hello- A word of caution regarding POR15...The can does not really tell you this but the paint is not resistant tp grease, oil or solvents of any type, it will literally melt if it comes in contact with most petroleum products or any type of solvent. this means you would go through the trouble of prepping and painting your subframe and then down the road, possibly have done it all for nothing. If you want to have the finish correct for what the factory did, I believe it came new with low gloss. If you are just building a car for your self and are not worried about the correct finish and value of the car, the more durable coatings mentioned in this string will probably last you a long time. Some of the new 2 part paints that are available in a spray can can be purchased in different finishes and are extremely durable. This way you have the durability and the correct finish.