Description
There are many interconnected internal and external pores in the open cell polyurethane foam. When sound waves are incident on them, they can cause air vibrations in the pores. Due to the viscous resistance of air and the friction between air and the pore wall, a large part of the sound energy is converted into heat energy and consumed. In addition, the concave convex wave shape of the sponge gradually reduces the remaining sound waves through repeated refraction. In addition, when air is adiabatically compressed, heat exchange continuously occurs between the air and the pore wall. Due to the directing effect, a portion of the sound energy is converted into heat energy, thereby achieving the effect of sound absorption.
Product | Mushroom Crate Acoustic Foam |
Material | Polyurethane (PU) |
Specification | 50 x 50 x 5cm Flame Retardant with Adhesive |
Colour | Black / White / Customize |
Density | 20 Kg/m3 – 50 Kg/m3 |
NRC | NRC: ≤0.80 |
Fire Resistance | Class B2 |
Mechanical Properties | Soft, Elastic, Good Cushioning |
Features | 1. Excellent Sound Absorption 2. Light weight & Easy installation 3. Cost-effective 4. Eco-friendly & Safe |
Installation | Wall or Ceiling as per project Acoustic Requirement. |
The polyurethane foam is non-toxic, odorless, environmentally friendly, and hygienic, making it an ideal indoor sound absorbing and audio reflecting material; Widely used in recording studios, recording rooms, audio-visual rooms, drum rooms, KTV, speech rooms, broadcasting rooms, testing rooms, acoustic laboratories, conference halls, studios, theaters, and other places, as well as sound absorbing and silencing places such as computer rooms, generator sets, and speakers.
PROPERTY | TEST METHOD | VALUE |
Density | TEST METHOD | 2.5 lbs/cu-ft (40 ±3 kg/m3) |
Acoustic Performance (NRC) | (EN1936) | 0.80 (based on 50mm thickness) |
Thermal Conductivity | (ISO 354:2003) | 0.038 w/m*k(@ 23°C |
| (GB/T10295-2008) | ≥ 160 |
IFD (KG/315 CM2) | @25% | ≥ 200 |
| (GBT/3854) @40% | ≥ 420 |
Tensile Strength | @65% | ≥ 160 Kpa |
Tearing Strength | (GB/T6344-2008) | ≥ 260 N/m |
Elongation at Break | (GB/T10808-2006) | ≥ 110% |
Resilience by Ball Rebound | (ISO 1798) | 55% |
Operating Temperature | (GB/T 6670-2008) | -20 ~ +120 °C (-4 ~ +248 °F) |
Fire Rating | Lab test | Self-extinguishing |
(EU) RoHS directive | BS 5852-2/CAL117/UL94 HBF | Pass |
Reach (SVHC 241) | 2011/65/EU & No. 2015/863 | Pass |
Colour | 1907/2006 | Black (can be customized) |
Note:
- Information on this data sheet is subject to change without prior notice and should not be used for writing specifications.
FEATURES: Open-cell honeycomb structure, Effective noise reduction & sound-absorption, Eco-friendly, Flame retardant…
PATTERN: Pyramid, Wedge, Egg Crate, Mushroom, High-Low Groove, Rectangular, Hexagonal, Square, etc.
THICKNESS: 25 / 35 / 50 / 75 / 100 mm, can be customized.
PANEL SIZE: 300×300 / 500X500 / 600 x 600 / 1000X1000 / 1000×2000 / 1500×2000, can be customized.
PACKING Non-compressed packaging or Compressed packaging.
SHIPPING LIMITATION: None
STORAGE CONDITION:
CF-PU Acoustic Foam Panel should be stored in a cool, dry area away from direct sunlight and other heat sources. The products can be used before (24) months when stored at 21°C with 50% relative humidity. For best performance apply the foam panel on clean, dry, dust & oil free surfaces between +10 ~ +40°C (+50 ~ +105 °F).
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