GC Fuji VII evolutionary glass ionomer sealant and surface protectant. It is fantastic at keeping young patients teeth cavity-free. There is no isolation or bonding agent required. It works in a moist field. With this product, you never have to worry about sealing over immature enamel or non-cavitated lesions. The self-bonding, high fluoride releasing GC Fuji VII creates a strong, acid-resistant fused layer.