All helmets, skate cases, and any other products that are hard surfaces MUST be clear coated immediatley after being airbrushed, and before use. This process seals the design onto the product. This is the customer's responsibility. Buy a can of Krylon Clear spray. This is located in the spray paint department of your local Wal-Mart. Set your hard surface item in a well-ventilated area and sprat a LIGHT coat of the clear, and let it DRY COMPLETELY. Repeat this process until there is a good coat of clear covering the item (about 8 or 9 coats). DO NOT pile the clear on too thick or too quickly, or it will dry white and cloudy, and it will ruin the item. Then let it DRY OVERNIGHT before using.