Pottery / Ceramic Onglaze Flux

When onglaze colors are used, an onglaze flux is often mixed with the colors to help them adhere to the glazed surface. The flux lowers the melting point of the colors, ensuring they fuse to the glaze without altering the base glaze. It also helps achieve a smooth, glossy finish and can be used to help create different effects with the onglaze colors, such as enhancing the shine or aiding in the color blending.