Cabana recommends sealing of tables and water features as this will help protect the product from most stains and help slow the aging process. Sealing cannot take place until the product is completely dry including all mortar or glue joints. We recommend sealing the birdbath inside using either Cemix Ornamental Sealer or, if you require a watertight seal, Cemix Pond & Trough Waterproofer (available in black or blue).