Promac Rubber Duck Liquid Rubber is a high-performance, water-based waterproofing coating widely used in South Africa for its extreme flexibility and durability. Unlike standard paints, it forms a thick, elastic membrane that can stretch and contract with the movement of a building, making it highly effective at sealing leaks.
Key Features & Benefits
- High Elasticity: Designed to bridge hairline cracks and move with the substrate without peeling or snapping.
- UV Resistant: Specially formulated to withstand the harsh South African sun, ensuring the rubber doesn’t become brittle over time.
- Multi-Surface Adhesion: Bonds excellently to concrete, galvanized iron (roofing), fiber-cement, and even previously painted surfaces.
- Water-Based: Environmentally friendly, low odor, and easy to clean up with water while wet.
- All-Weather Protection: Provides a seamless barrier against rain and dampness.
Common Applications
- Roofing: Repairing and waterproofing galvanized iron roofs, tiled roofs, and flat concrete slabs.
- Parapet Walls: Sealing the tops of walls where water often seeps in.
- Gutters: Lining internal gutters to prevent rust and leaks.
- Flashings: Securing the areas where roofs meet walls or chimneys (best used with a waterproofing membrane/mesh).



