ARBOFLEX One Component PU Primer

ARBOFLEX® PU Primer – Surface Preparation & Bond Enhancer for PU Membranes

ARBOFLEX® PU Primer is a single-component, high-solids polyurethane resin formulated to improve adhesion and surface planimetry before applying ARBOFLEX PU waterproofing systems. Its low viscosity allows for easy application and excellent penetration into porous surfaces like concrete, cement, and plywood.

This primer is ideal for both new applications and refurbishment projects, including repairs, overlaps, and bonding over existing PU or PUA membranes.

🔧 Key Features:

• ✅ Single-Component & Easy to Use – No mixing required

• ✅ Improves Surface Bonding – Enhances adhesion to porous and slightly uneven substrates

• ✅ Fast Drying Time – Touch-dry in just 2–3 hours at 23°C

• ✅ Multi-Surface Compatibility – Concrete, cement, plywood, and existing PU/PUA membranes

• ✅ Optional Silica Additive – Can be combined with mineral particles for levelling uneven areas

• ✅ Translucent Finish – Minimal visual impact under membrane application

• ✅ For Surfaces with Max 5% Humidity – Not suitable for wet or moisture-exuding substrates

📌 Application & Coverage:

• Tools: Brush or roller

• Yield:

  • Porous surfaces: 100–200 g/m² (1 or more thin layers)

  • Over existing membranes: 50–100 g/m²

• Application Conditions:

  • Max surface humidity: 5%

  • Do not apply on actively damp surfaces

• Dry Time: 2–3 hours at 23°C

📦 Product Information:

• Product Name: ARBOFLEX® PU Primer

• SKU: AF-Primer-06

• Stock Type: Warehouse Fulfilled

• Brand: ARBOFLEX

• Appearance: Translucent liquid

💡 Ideal For:

• Pre-treatment of porous substrates before ARBOFLEX PU application

• Repairs and overlaps on existing PU/PUA waterproofing membranes

• Concrete, cement mortar, plywood, and compatible roofing surfaces

Download