Introduction
The document provides detailed specifications for VIBRAX®FOAM 8/4, a product designed for impact sound insulation. The mageba team offers specialized consulting to ensure optimal product selection based on sound engineering requirements and flooring systems.

Material Composition
VIBRAX®FOAM 8/4 is composed of high-grade recycled polyurethane foam and cork, bonded with a PU elastomer. It has a density of 300–400 kg/m³ and a weight of 1.50–2.80 kg/m². The material is available in a thickness of 8/4 mm, with a roll width of 1,250 mm and a roll length of 8,000 mm. The surface is smooth with a granulate structure, and the undersurface features a wave cut. The color is beige/brown, which may change due to sunlight without affecting quality.

Technical Specifications
- Tensile Strength: Approximately 0.4 N/mm² (ISO 1798)
- Elongation at Break: Approximately 40% (ISO 1798)
- Static Range of Use: 0.02 N/mm² (EN 826)
- Deflection: Less than 10% at 0.005 N/mm²
- Dynamic Stiffness: 18 MN/m³
- Temperature Resistance: –30°C to +80°C
- Fire Behaviour: Efl (ISO 11925/EN 13501)

Impact Sound Improvement
The product offers an impact sound improvement of Δ LW 30 dB below 80 mm screed (179 kg/m²) and 25 dB below 50 mm screed (99 kg/m²). The improvement is dependent on material thickness, screed thickness, and flooring used.

Installation Components
The installation involves floor covering (PU or other), edge strip (e.g., VIBRAX®FOAM 8/4), adhesive, screed, PE-membrane, balancing soil, and concrete floor.

Conclusion
VIBRAX®FOAM 8/4 is a versatile and effective solution for impact sound insulation, suitable for various flooring systems and conditions. The mageba team emphasizes early involvement in planning to avoid costly errors.