Key advantages
• Elastic acoustic and thermal polyurethane foam
• 3 times more flexible than standard PU foam
• High sound insulation – up to 62 dB
• Excellent thermal insulation
• High airtightness
• Low expansion and precise control
• No shrinkage after curing
• Suitable for openings, frames and service penetrations
• Remains elastic over time
Why this product
Unlike standard PU foam, which hardens and becomes rigid,
Flexifoam stays elastic and can therefore absorb movement, vibration and structural changes without cracking.
This is what makes it a far better acoustic solution in the long term.
Technical description
An elastic, one-component, self-expanding polyurethane foam designed for sealing, sound insulation and thermal insulation.
The material offers exceptionally high flexibility and retains its insulating properties for years, even in dynamic joints and connections.
The foam provides high airtightness, excellent thermal insulation and advanced acoustic performance.
Applications
• Window and door installation
• Filling cavities and service penetrations
• Sealing dynamic joints
• Improving sound insulation
• Improving thermal insulation
• Plasterboard wall systems
• Roofs and metal structures
• Refrigeration and air-conditioning systems
Technical specifications
Material:
• Polyurethane (PU)
Density:
• Approx. 25 kg/m³
Sound insulation:
• Up to 62 dB
Thermal conductivity:
• 0.035 W/(m·K)
Cutting time:
• Approx. 40 minutes
Temperature resistance:
• -40 °C to +90 °C
• Up to 120 °C for short periods
Additional properties:
• Shrinkage below 5%
• Low expansion
• Water vapour permeability
• High airtightness
Acoustic performance
• Significantly improved acoustic sealing
• Reduces sound transmission through openings and joints
• Especially suitable for windows, doors and plasterboard walls
According to tests:
• Sound Insulation: 62 dB
Standards and certifications
• EN 13501-1 – Class E
• DIN 52612 – Thermal conductivity
• DIN 18452 – Airtightness
• DIN EN ISO 12572 – Water vapour permeability
• EN ISO 717-1 – Sound insulation
• RAL Certified
• Suitable for the LEED green building standard
Installation
• Shake well before use
• Lightly moisten the surface before application
• Fill approx. 65% of the cavity – the foam expands
• A professional foam gun is recommended
• To remove fresh foam – use acetone or Foam Cleaner
• Cured foam can only be removed mechanically
Downloads
Data sheet: devtec_tds_FLEXIFOAM
