Promac Rubber Duck Liquid Rubber is a medium-sheen, high-build acrylic waterproofing compound developed to protect roofs and surfaces from water penetration and environmental damage. Applied as a thick liquid paste, it forms a seamless and flexible membrane that resists cracking, abrasion, and weather exposure. Its strong resistance to UV rays, mould, fungus, and extreme temperatures makes it suitable for long-term outdoor protection. Available in 5L and 20L pack sizes and multiple colour options, this coating helps extend the lifespan of roofs and exposed structures while maintaining a durable, decorative finish.

Key Features

• Flexible waterproof membrane that prevents water penetration
• High UV resistance for long-lasting outdoor protection
• Resistant to abrasion, impact, and stone chipping
• Mould and fungus resistant
• Suitable for sharp edges and intricate surfaces
• Environmentally friendly and non-toxic once cured

Spreading Rate

• Approximately 1.5 – 2 litres per m²
• Coverage depends on substrate condition and surface porosity

Application Guidelines

• Apply a primer coat using Rubber Duck Nudek Primer & Sealer or
• Promac Bonding Liquid
• Allow primer to dry for 1 – 1.5 hours at 23°C
• Apply two or more coats of Liquid Rubber
• Allow 4 hours drying time between coats
• Apply evenly using brush, roller, spray, or trowel
• Ensure roof slopes allow proper drainage (minimum slope 2–4°)

Applications

• Roof waterproofing
• Protective coating for exposed structures
• Waterproofing walls and concrete surfaces
• Maintenance and restoration of ageing roofs