Well, I don't have enough info to understand what your expectations(results) are but you can use the air-dry Cerakote with a brush for light touch up. Even better is an air-brush with a medium tip and 20 PSI of filtered air (compressor or propellant depending.) If you have to purchase and air brush, compressor, and the Cerakote you are half way to the cost of a professional re-coat anyway. My experience is that it never really "matches" but is close.