
Merfopol
Weighted sound absorption coefficient up to αw = 0.80
Resistant to water, oil, fuels, and many cleaning solvents
Durable and 100% recyclable material
Merfopol is a sound-absorbing and thermally insulating panel made from closed-cell polyethylene (LDPE) foam, designed for environments exposed to moisture, dirt, and weather conditions. Its cellular structure provides effective acoustic performance and thermal insulation, while the material is 100% recyclable and highly durable. Standard panel dimensions are 1,200 × 1,000 mm, with thicknesses of 30, 40, and 50 mm.
Merfopol delivers a weighted sound absorption coefficient of up to αw = 0.80, depending on thickness: αw = 0.50 at 25 mm, αw = 0.70 at 40 mm, and αw = 0.80 at 50 mm. The material has a density of approximately 25 kg/m³ and withstands temperatures from –40 °C to +100 °C. It is resistant to water, oil, dirt, and many solvents, making it suitable for both outdoor applications and installation in machine rooms, pump housings, or keel spaces in vehicles and boats.
Merfopol is ideal for outdoor noise barriers, housings for machines, pumps or compressors, hull spaces in vehicles or boats, and other applications requiring high sound absorption, thermal insulation, and resistance to environmental influences.
Downloads and specifications
Answers to common questions
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.








