Sadolin Superdec Opaque is a highly flexible water-based coating for exterior wood. Recommended for doors, windows and cladding. Ideal where a complete change of colour is required and helps to treat uneven, weathered surfaces.The flexible coating expands and contracts with the wood, resisting cracking, flaking and peeling. It can be applied to new and previously stained or painted surfaces and is ideal for a complete change in colour or hiding timber blemishes.