I use chrome Monocote for trim. I have also used the metallic gold. They are different than the opaques. They are very thin and they don't shrink much. I used the gold over a portion of the fuselage with stringers and didn't like the result. You have to lay it out on the plane well before applying heat. I'm about to use the metallic gold and chrome as trim on my Andrews Aeromaster Too with light purple as base. I thought real hard about getting the metallic plum but the Aeromaster Too bipe is not an easy plane to cover. Don't get me wrong, there are guys in our club that are really good with the metallics and the flats but they will tell you they are more difficult to apply.