HU SK

Sound absorbing foams

Sound absorbing foams are mainly recommended for the soundproofing covering of equipment of machine and vehicle industry or household machines. The Protecto product line gives the solution for the emerging problems in these fields. Sound absorbing foams are open-cell foams available in numerous versions in average. Their average density is 30 – 50 kg/m3. They are produced with self-adhesive layer and with various protective layers. According to that, the products are resistant to mechanical impacts, splashing water or oil – depending on the field of application. They are self-extinguishing materials and meet the standards FMVSS302 or UL94HF1. Sound absorbing foams are solely recommended for indoor application.

Protecto product line also contains combined sound absorbing foams. All of our products are tested in laboratory. The results of the laboratory tests can be found on the data sheet of the products.

Hanno Protecto Catalog

Hanno Protecto 20

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This sound absorbing foam consists of special material combinations and has excellent sound absorbing properties. It is based on open-cell PU foam with a sound permeable surface layer. Even if applying it in small quantities, the product can effectively convert the sound energy to heat energy by friction in its cells.

Properties:

The 25 micrometer thick upper layer is moderately waterproof. The basic material of the product is permanently resistant to petrol, splashing engine oil, and it’s easy to clean. The upper covering protects the material against mechanical damages. The product has excellent ageing properties.

Field of application:

This sound absorbing foam can be used in any field of machine or vehicle industry during the construction of sound insulated rooms, where the product can be exposed to oil or petrol splashes or intense mechanical impacts. The product is only for indoor application.

Sound absorption coefficient
Name of the productThickness125 Hz250 Hz500 Hz1000 Hz2000 Hz4000 Hz
Hanno Protecto 2010 mm0,060,080,250,500,820,75
Hanno Protecto 2020 mm0,070,150,620,840,760,75
Hanno Protecto 2030 mm0,130,450,730,860,730,65
Hanno Protecto 2040 mm0,140,670,750,770,750,76
Hanno Protecto 2050 mm0,300,800,780,750,740,75

Hanno Protecto 50

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The application of this sound absorbing foam is recommended in doors, tubes, engine compartments. The product has excellent sound absorbing properties in a wide range of frequency. The basic material of the product is PU foam. The mostly open-cell based PU foam has high temperature tolerance (100°C) and very good ageing properties. It is available with self-adhesive layer.

Properties:

The surface layer of this sound absorbing foam is resistant to contamination, splashing water, and permanently to petrol and engine oil. The upper surface of the product is protective against mechanical impacts and is easy to clean.

Field of application:

The application of this sound absorbing foam is recommended in cabin manufacturing, or in any field of vehicle industry, where the product can be exposed to oil or petrol splashes or intense mechanical impacts. These sound absorbing foams are further suitable for the insulation of equipment that need high soundproofing properties.

Sound absorption coefficient
Name of the productThickness125 Hz250 Hz500 Hz1000 Hz2000 Hz4000 Hz
Hanno Protecto 5010 mm0,050,070,120,230,570,86
Hanno Protecto 5020 mm0,080,120,260,620,750,94
Hanno Protecto 5030 mm0,090,170,410,860,820,79
Hanno Protecto 5040 mm0,130,280,570,940,940,74
Hanno Protecto 5050 mm0,140,320,690,990,980,95

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Hanno Protecto 51

This sound absorbing foam can be applied in a wide frequency range, in case of intense mechanical impacts. The product has excellent sound absorbing and hydrolysis resistance properties. The basic material is open-cell PU with wide-range temperature tolerance, available with self-adhesive layer.

Properties:

The surface layer of this sound absorbing foam protects against contamination and moderately against water. The material is permanently resistant to petrol and splashing engine oil. The synthetic fiber cover of the product protects against intense mechanical impacts. It has excellent ageing properties.

Field of application:

AThese sound absorbing foams can be applied during the construction of sound insulated rooms, in machine or vehicle industry, where the exposition to petrol or splashing oil, mechanical impacts are possible. The product is only for indoor application.

Sound absorption coefficient
Name of the productThickness125 Hz250 Hz500 Hz1000 Hz2000 Hz4000 Hz
Hanno Protecto 5110 mm0,070,130,210,650,840,81
Hanno Protecto 5120 mm0,150,220,390,890,920,91
Hanno Protecto 5130 mm0,190,400,840,880,820,65
Hanno Protecto 5140 mm0,210,470,950,830,620,61
Hanno Protecto 5150 mm0,300,700,920,820,570,75

HW30 sfl

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This sound absorbing material has wave-patterned surface, and in the first place can be applied for the reduction of echo in studios and acoustic cabins. The product is self-adhesive. The surface of the product is excellently flexible therefore the product is dimensionally stable.

Properties:

  • Good hydrolysis resistance,
  • Moderate UV stability,
  • Neutral to petrol and other mineral oils,
  • Available with wave patterned-surface.
Sound absorption coefficient
Name of the productThickness125 Hz250 Hz500 Hz1000 Hz2000 Hz4000 Hz
Hannoschaum HWSFL 3021 mm0,080,190,420,960,890,93

Hanno Protecto Plus 65

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This wave-patterned, self-adhesive sound absorbing material can be applied in the first place for studios and acoustic cabins for the reduction of the echo. The surface of the product is excellently flexible, has a good density, therefore the product is dimensionally stable. This sound and vibration proofing material combination consists of wave-patterned sound absorbing PU surface layer and a bitumen back layer. The product has excellent air-borne and structure-borne sound insulating properties, with a wide range of temperature tolerance.

Properties:

This product is a combined material that is applicable for the reduction of vibration and air-borne sounds due to the bitumen back layer’s properties, and also for sound insulation due to the PU foam’s properties.

Field of application:

These combined sound absorbing materials are recommended for machine coverings, sound insulated cabins and other rooms. The product is only for indoor application since it should not be exposed to extreme weather conditions.

Sound absorption coefficient
Name of the productThickness125 Hz250 Hz500 Hz1000 Hz2000 Hz4000 Hz
Hanno Protecto Plus 6523 mm0,090,200,420,970,890,92

Hanno Protecto Plus 75

Műszaki adatlap letöltése.

This self-adhesive sound and vibration proofing material combination consists of wave-patterned sound absorbing open-cell PU surface layer and a bitumen back layer. The product has excellent air-borne and structure-borne sound insulating properties, with a wide range of temperature tolerance.

Properties:

The product is a combination of a bitumen layer and an excellently sound absorbing open-cell PU foam based layer, provided with a thin protective layer. Due to this combination of materials, Protecto plus 75 is appropriate for structural sound insulation, air-borne sound insulation and sound absorption. The 25 µm thick protective layer is resistant to contamination and splashing water. The material is extremely resistant to splashing engine oil and petrol and is easy to clean. The cover layer is further protective against mechanical impacts. The product has excellent ageing properties.

Field of application:

This product is in the first place recommended for the insulation and lining of machines, equipment, cabins and compartments.

Hangelnyelési tényező
Termék neveAnyagvastagság125 Hz250 Hz500 Hz1000 Hz2000 Hz4000 Hz
Hanno Protecto Plus 7510 mm0,080,130,310,510,730,74
Hanno Protecto Plus 7520 mm0,090,200,610,830,730,74
Hanno Protecto Plus 7530 mm0,120,570,800,850,820,69