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Soundproof Decorative Closed Cell Aluminum Foam sheet

Aluminum foam is made by adding additives to pure aluminum or aluminum alloy and then through a foaming process. It has both metal and bubble characteristics.

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Product Details

Because aluminum foam is a porous material, diffuse reflection occurs after sound enters, thereby weakening the noise.

Compared with other sound-absorbing materials, aluminum foam has excellent low-frequency absorption performance. Adding a certain size of cavity to aluminum foam, the sound-absorbing effect is better and can be applied in a wider frequency range.

For example: before indoor sound-absorbing treatment, the wall surface is made of very hard cement, and after 10mm thick aluminum foam is applied indoors for sound-absorbing and noise-reducing treatment, the sound-absorbing foam aluminum can reduce the noise by 15-25db.

	Performance	Technical Parameters	Mark
1	Controllable density	0.2 〜0.6g/cm3	0.1-0.2 times that of metal aluminum
2	Common density	0.25 〜0.35g/cm3
3	tensile strength	2.1Mpa	Test sample density: 0.35g/cm3
4	Compressive strength	5.56Mpa
5	Core shear strength	0.43MPa
6	Sound insulation coefficient	0.9above	When the sound wave frequency is between 800-4000HZ
7	Sound absorption coefficient	0.5above	When the sound wave frequency is between 125-4000HZ
8	Sound absorption coefficient (compressed and perforated)	0.8above	When the sound wave frequency is between 125-4000HZ
9	Amount of insulation (bare board)	>14dB	Test sample thickness 10mm

10	Volume insulation (foam aluminum composite panel)	>36dB	27mm aluminium foamed sheet 1mm aluminium sheet（Double-sided composite）
11	Electromagnetic shielding amount	60-90dB	When the electromagnetic wave frequency is between 2.6-18GHZ
12	Thermal Conductivity	0.3-1Watt/meter	Closed-cell aluminum foam with a porosity of 80---90% has a thermal conductivity equivalent to marble
13	Other properties	Easy to process and install: easy to cut, drill and glue; can be bent into required shapes after molding; does not burn and has good heat resistance, corrosion resistance, weather resistance, low moisture absorption, no aging, and no toxicity , can be reused.