Sadolin Extra Mahogany is a suitable choice for joinery projects such as doors and windows. Its flexible nature and water-repellent properties provide long-lasting protection. For optimal durability on new wood, consider using Sadolin Classic as a base coat, especially when treating hardwoods. This product is ideal for windows, doors, and conservatories. It resists flaking, peeling, and blistering, and is durable and hard-wearing.