Tamiya - TS-80 Flat Clear

Easy and looks great when done.

The spray can does amazing work for any gunpla kit, only issue resides in the small quantity, will only last you for 1 entire kit if you're thorough with the coating process, meaning it's a bit difficult to justify ordering the cans one at a time if you live outside Denmark like I do, unless ordering together with multiple products, would still recommend if you want to give your final build a serious look with very little difficulty if taking safety measures regarding the paint fumes.