Nanolex Si3D BC is a semi-hydrophobic coating incorporating many of the benefits of modern ceramic coatings but with one key feature: flexibility. Si3D's nature makes it the perfect base coat for Si3D and Si3D HD. As a base coat, it enhances the properties of the top coat, providing boosting durability and gloss performance. As a result, Si3D BC is highly suited to layering with Nanolex Si3D and Si3D HD to deliver an outstanding finish.