49 Testor's Enamel Paints - 7 Pack Basics - Set 16 - 1/4 oz- Gloss White, Gloss Black, 2x Flat Black, Metallic Silver, Metallic Gold, Thinner 4.5 out of 5 stars 12 $14.49 $ 14 . $5.70$5.70. FREE Shipping. Paint thinner also keeps the paint flowing through your paint gun easier for any paint job. Only 19 left in stock - order soon. Ages: 14 years and up. O TAMIYA COLOR FLAT ENAMEL HOBBY PAINT NEW 10ML X-20 ENAMEL THINNER /item# R6SG5EB-48Q11994. A paint reducer or thinner helps you get your paint to the right viscosity for your touch-up paint job.