Merfocell PU
Weighted sound absorption coefficient up to αw = 0.80
Provides thermal insulation in technical enclosures
Ideal for vehicles, engines, and pumps
Merfocell PU is a sound-absorbing panel made from open-cell polyurethane foam, featuring a thin, flexible PU film top layer that repels oil, dirt, and moisture. Available in multiple thicknesses (e.g. 20, 30, and 50 mm) with a standard size of 1,200 × 1,000 mm.
It is designed for use in machine rooms, engine enclosures, vehicle housings, and other technical applications requiring both durability and acoustic performance. A self-adhesive variant is also available for quick and easy installation.
Depending on thickness, Merfocell PU achieves a sound absorption coefficient (αw) of 0.40–0.60 in thinner variants and up to 0.80 in thicker versions. The panel has a density of approximately 25 kg/m³ and is temperature-resistant from –40 °C to +100 °C (self-adhesive version up to +70 °C).
The PU film enhances resistance to oil and moisture and is fire-retardant (FMVSS 302). Panels should be installed on a flat, dry surface, with seams carefully sealed to maintain optimal acoustic performance. The panel also provides thermal insulation with a thermal conductivity of λ = 0.036 W/(m·K).
Merfocell PU is suitable for walls, ceilings, and the inside of enclosures for engines, pumps, generators, vehicles, and boats. It combines sound absorption, fire safety, thermal insulation, and protection against oil and moisture. The self-adhesive backing allows for quick installation and easy maintenance, even in demanding technical environments.
Downloads and specifications
Answers to common questions
A Life Cycle Assessment (LCA) is an environmental analysis of a product throughout its entire life cycle: from raw materials and production to use, maintenance, and end-of-life. An LCA provides insight into the environmental impact, such as CO₂ emissions, energy consumption, and material footprint, and helps ensure the product can be used in sustainable projects or comply with certifications such as BREEAM, LEED, or the National Environmental Database.
Yes. The revision of the European F-gas Regulation (in effect since 11 March 2024) does not affect the applicability of this product. The existing requirements for fire safety and acoustic performance remain in place and are fully supported by this product.
For building-related technical installations in new construction, an LCA certification is mandatory. This product has an LCA declaration that is included in the National Environmental Database.
Merford can perform acoustic analyses or simulations to predict noise levels and reverberation times based on material selection, room dimensions, and finishes, ensuring the right solution is designed.
Our acoustic materials generally require minimal maintenance. Dusting and cleaning is usually sufficient to maintain long‑term performance.
- Vibration isolation reduces mechanical vibrations from machines or equipment, preventing transmission to the building structure or floor.
- Sound insulation prevents sound from passing from one space to another, e.g., between rooms or to the exterior.
- Sound absorption reduces echo and reverberation within a space by damping sound waves, improving comfort and speech intelligibility.
Merford materials can provide one or more of these effects depending on the product type, such as absorption panels for rooms or isolation around ventilation units.
