soni 471
Acoustic foam sheet with attractive diamond pattern
- Visually attractive lozenge pattern
- Robust and dirt-resistant surface
- Excellent sound absorption values
























Available, delivery time: 2-5 days
soni 471 – PUR acoustic panels for long-lasting sound and heat insulation
Order PUR foam acoustic panels from soniflexThe soni 471 acoustic panel is a high-quality PUR acoustic foam with a diamond-shaped thermal embossing that ensures a compacted and sealed surface. This structure makes the material particularly robust, durable and resistant to dirt – ideal for use in demanding environments.
The air-permeable embossing also improves acoustic effectiveness, especially in the frequency range of typical engine noises. This makes soni 471 the perfect choice if you want to effectively reduce noise in your vehicle while also achieving a visually appealing surface.
Areas of application for soni 471
Our soni 471 acoustic foam impresses with its high hydrolysis resistance and is therefore particularly frequently used in the automotive sector.
Typical applications are:
✔ Sound-absorbing and heat-insulating interior trim for motorhomes, classic cars or commercial vehicles
✔ Engine compartment insulation and vehicle floor insulation
✔ Applications in mechanical and plant engineering where robust sound absorbers are required
The acoustic foam naturally complies with the fire standards required for the automotive sector in accordance with FMVSS 302 and DIN 75200.
Easy processing and installation
Installing soni 471 couldn't be easier: the panel can be cut to the desired size with a craft knife. Thanks to its low weight and self-adhesive backing, it can be attached quickly, cleanly and permanently – even on slightly uneven surfaces.
This saves you time during installation and allows you to benefit immediately from a noticeable reduction in noise and heat.
Technical advantages at a glance
✔ PUR acoustic foam with diamond-shaped thermal embossing✔ Compacted, dirt-resistant surface
✔ Air-permeable structure for high sound absorption
✔ High hydrolysis resistance (particularly durable)
✔ Complies with FMVSS 302 and DIN 75200
✔ Self-adhesive backing for easy installation
✔ Ideal for vehicle insulation, machine cladding and technical equipment
Acoustic benefits: | sound absorption |
---|---|
Applications: |
Car | Motor | Boat Production hall | Workshop Machine | Compressor | Utility room |
Basic material: | PUR foam |
Color: | dark grey |
Flammability: | FMVSS 302, automotive fire safety standard |
Note: |
- Sealed but air-permeable surface - Dirt-repellent - Easy handling - Flammability details see technical data sheet |
Rear face: | self-adhesive (sk) |
Size: | 1000 x 500 mm |
Temperature resistance: | -40°C to +100°C |
Thickness: | 10 mm |
Types of uses: | Products for technical applications |
Weight: | 150 g |
What is soni 471?
soni 471 is a PUR acoustic panel with a special diamond-shaped embossing. It is used for sound insulation and thermal insulation in vehicles, machines and technical equipment.
What is soni 471 used for?
The PUR acoustic panel is mainly used in the automotive sector – e.g. for noise reduction in motorhomes, classic cars, boats and vans. soni 471 is also used as a robust sound absorber in industry and mechanical engineering.
How is soni 471 installed?
Installation is particularly easy thanks to the self-adhesive backing. Cut the panel to size with a craft knife and press it onto the cleaned surface.
Is soni 471 flame retardant?
Yes, soni 471 complies with fire standards FMVSS 302 and DIN 75200, making it ideal for use in vehicle construction and technical applications.
What are the advantages of soni 471 over other acoustic foams?
The diamond-shaped surface not only looks attractive, but also improves sound absorption. In addition, soni 471 is hydrolysis-resistant, robust and durable – a quality feature that clearly distinguishes it from conventional acoustic panels.
Where can I buy soni 471?
You can order soni 471 directly from the soniflex web shop. We deliver quickly and reliably.
Can I use soni 471 to reduce reverberation or noise in a room?
Yes, but soni 471 is primarily designed for technical noise sources. For living or working spaces, we recommend open-cell absorbers (e.g. melamine foam or polyester fleece), which are even more effective at dampening sound waves in the speech frequency range.
When is it worth installing acoustic panels on the wall or ceiling?
Whenever rooms seem echoey, loud or restless. Covering 30–50% of the wall or ceiling area usually leads to a noticeable improvement in room acoustics.
Which acoustic panels are best suited for walls or rooms?
Visually appealing acoustic panels such as soni COLOR or soni PICTURE are suitable for rooms, offices, schools or living areas, as they are open-pored and decorative at the same time. soni 471, on the other hand, is ideal for technical applications where robustness and dirt resistance are paramount.
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