SELF-SMOOTHING FLOORS Epoxy and Polyurethane (PU) Flow-Applied Floors

Self-smoothing floors, also referred to as flow-applied resin floors, are liquid-applied flooring systems based on synthetic resins such as epoxy or polyurethane (PU). Installed in thicknesses generally between ca. 1.5–4.0 mm, depending on system type and loading. Once installed, the material flows across the substrate and levels itself, forming a smooth, seamless, and uniform surface.

How They Work?

The system is applied in liquid form onto a prepared substrate (typically concrete or screed). Due to its rheological properties, the material:

• Spreads evenly across the surface
• Fills minor irregularities
• Settles to a consistent thickness

This results in a level, joint-free finish without the need for extensive manual levelling.

 

Epoxy Self-Smoothing Floors

Epoxy-based systems are typically specified where high mechanical strength and rigidity are required.

Key characteristics:

• High compressive and abrasion resistance
• Rigid system build-up
• Good chemical resistance
• Smooth, dense surface finish

Typical use:

• Warehousing and logistics
• Production areas
• Workshops and engineering environments
   

Polyurethane (PU) Self-Smoothing Floors

PU-based systems offer increased flexibility and comfort underfoot, making them suitable for environments with thermal or mechanical movement.

Key characteristics:

• More elastic than epoxy systems
• Good crack-bridging capability
• Resistant to impact and thermal cycling
• Available in matt or decorative finishes

Typical use:

• Commercial interiors and offices
• Retail and public spaces
• Healthcare and education facilities

• Flow-applied for consistent surface regularity
• Seamless, joint-free finish
• Suitable for light, medium to high traffic areas
• Available in different thicknesses depending on system design
• Compatible with prepared concrete and cementitious screeds

Application Areas

Self-smoothing epoxy and PU systems are used where a combination of performance, durability, and finish quality is required:

• Industrial and semi-industrial environments
• Commercial interiors and retail
• Public buildings and circulation areas
• Healthcare and institutional spaces

System Selection

The choice between epoxy and PU systems depends on project-specific requirements, including:

• Mechanical loading and traffic intensity
• Substrate condition and movement
• Exposure to chemicals or temperature variation
• Required finish (functional vs decorative)

Substrate & Preparation

Self-smoothing resin systems require a properly prepared substrate to ensure adhesion and long-term performance. This typically involves:

• Mechanically prepared concrete or screed (e.g. grinding or shot blasting)
• Priming prior to system application
• Assessment of moisture content and substrate condition

Technical Documentation & Support

Each system within this category is supported by:

• Technical datasheets
• System build-ups
• Application guidelines

For specification support or system selection, contact our technical team.