Promac’s Rubber Duck™ Nudek Primer & Sealer is a single-component, solvent-based polyurethane coating engineered for maximum adhesion, flexibility, and waterproofing. Designed as both a primer and intermediate coating, it offers superior durability and intercoat adhesion across a wide range of materials.

Suitable for interior and exterior applications, this clear, glossy sealer is ideal for use on cementitious and masonry surfaces, wood, steel, galvanised metal, and previously coated substrates like acrylic, bitumen, and water-based waterproofing systems.

✅ Key Features:

• Solvent-based polyurethane formula

• Moisture-cured with high flexibility

• Excellent adhesion to multiple surfaces

• Tough, UV-resistant and damp-proof

• Resists mould, fungus, and extreme temperatures

• Forms a water-resistant coating

• Can be applied by brush, roller, or airless spray

• Compatible with both water-based and solvent-based topcoats

🏗 Recommended Uses:

• Primer & sealer for concrete, wood, masonry, and metal

• Intermediate coating for waterproofing systems

• Sealer for concrete floors and walls

• Suitable for complex contours and hard-to-reach surfaces

• Ideal for high-performance construction and refurbishment

⚙ Technical Info:

• Colour: Clear only

• Finish: Smooth Gloss

• Volume Solids: 33%

• Spreading Rate: 8–14m² per litre per coat

• Recoat Time: Touch dry in 1–2 hours

• Application: Brush, roller, or airless spray

• Packaging: Available in 5ℓ and 20ℓ

⚠ Note: Not recommended for use below 10°C, or on damp surfaces (>60% moisture). Product should not be left uncoated for longer than 24 hours before overcoating.