Promac Rubber Duck Rain Guard is a high-performance acrylic waterproofing system designed to prevent water ingress and protect surfaces from leaks and moisture damage. It is used as part of a complete system, working together with a reinforcing membrane to form a durable, watertight barrier.
 
Unlike standard coatings, Rain Guard acts as a combined saturator, sealer, and topcoat, making it ideal for waterproofing roofs, parapet walls, flashings, and masonry surfaces. It penetrates and seals cracks or holes where leaks may occur, ensuring long-term protection.
 
Its flexible formulation allows it to move with the surface while maintaining a strong bond, helping to prevent cracking and water penetration over time. The system is lightweight, non-toxic, and easy to apply, making it suitable for both professional and DIY waterproofing projects.