1K PU
Primer
1K PU Primer is a single-component solvent-based moisture-curing polyurethane primer developed for concrete, steel, timber, and cementitious substrates. Its low-viscosity, high-solids formulation penetrates deeply into porous surfaces, improving substrate integrity while creating a durable adhesion-promoting layer for polyurethane and polyurea coating systems. The primer also provides excellent sealing characteristics, moisture tolerance, and surface consolidation, making it ideal for industrial flooring, waterproofing, and protective coating applications.
Available in 5L and 20L pack sizes.
Features & Benefits
- Single-component moisture-curing polyurethane technology
- High-solids formulation for enhanced performance
- Deep penetrating primer with excellent sealing properties
- Improves adhesion of polyurethane and polyurea coatings
- Suitable for concrete, steel, and timber substrates
- Can be applied to concrete with moisture content up to 6%
- Performs in high-humidity environments up to 98% RH
- Consolidates weak and mechanically fragile concrete surfaces
- Reduces dusting on cementitious substrates
- Excellent surface strengthening properties
- Low-viscosity formulation for superior substrate penetration
- Suitable for waterproofing and flooring systems
- Fast drying and recoat characteristics
- Easy application by brush, roller, or airless spray
- Ready-to-use formulation requiring no mixing
Intended Uses
1K PU Primer is specifically formulated to improve adhesion, strengthen porous substrates, and create a high-performance foundation for polyurethane and polyurea coating systems. The moisture-curing technology allows application to slightly damp concrete while providing excellent penetration and substrate consolidation. It is widely used in industrial flooring, waterproofing, corrosion protection, and maintenance coating systems where strong adhesion and long-term coating performance are critical.
Typical Applications:
- Polyurea coating systems
- Polyurethane flooring systems
- Industrial floor coating installations
- Concrete floor preparation
- Warehouse flooring systems
- Manufacturing facility floors
- Parking deck coating systems
- Waterproofing membrane systems
- Concrete sealing applications
- Steel surface priming
- Structural steel coating systems
- Timber and wood surface priming
- Cementitious screed preparation
- Anti-dust treatment for concrete floors
- Surface consolidation of weak concrete
- Moisture barrier systems beneath timber flooring
- Industrial maintenance coating projects
- Protective coating systems requiring high-performance adhesion promotion
Technical Information:
- Binder Type: Polyurethane
- Volume Solids: 65%
- Recommended DFT: 90–120 microns per coat
- Coverage Rate: 5.4–7.2 m²/L per coat
- Number of Coats: 1–2
- Application Method: Brush, roller, or airless spray
- Tack Free: Approximately 90 minutes at 23°C
- Recoat Window: 90 minutes to 24 hours
Documents & Resources
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