Surecrete 65102004 .25" Gravel Dura-Kote Flakes - When it comes to decorative concrete, color is one of the most important variables to creating a beautiful, durable, long lasting work of art. Surecrete prides itself in having an industry leading selection of color options, for virtually any project. From Color that is added right into the concrete mix, to topical stains, dyes and flowing decorative epoxies.