Add style and color to your cake creations with aerosol lustre spray. PME Lustre Spray colors are super strength, highly concentrated spray-on food colors that are extremely effective, even on the hard to color non-dairy whipped toppings and icings. Using a light spray, one can will cover approximately 20 8" round cakes, 10 9x13" cakes, or 18 dozen cupcakes. 5 1 second sprays will provide about 0.2 grams of colour.