SGM Prime Onyx Atom
SGM Prime Onyx Atom — premium vibration dampener with thickened 120 µm aluminum foil. The updated, advanced butyl rubber mastic retains its elasticity and damping properties across an extended temperature range.
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Sheet size, cm
50x70
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MLF, c.u.
The mechanical loss factor shows how effectively the material absorbs vibration energy: 0 — the material does not damp vibration at all, 1 — ideal absorption.
0.41
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Application areas
floor, roof, dashboard, wheel house liners
Sheet thickness:
Description
SGM Prime Onyx Atom —premium vibration dampener with thickened 120 µm aluminum foil. The advanced butyl rubber mastic retains its elasticity and damping properties across an extended temperature range from –40°C to +140°C, offering enhanced adhesion to metal. The mounting side is protected by silicone-coated paper.
In the updated from the beginning of 2026 version of the material, the adhesive composition has been improved: increased adhesion ensures instant bonding and reliable fixation without preheating. The adhesive upgrade has made it “smart”: the “smart” adhesion of SGM Prime materials allows for adjustments during installation, with adhesion increasing by 25% within 15–20 minutes and by 60–80% or more after 24 hours.
The material features a matte satin aluminum foil treated with «Prime Satin» technology. This technology creates a developed micro-rough surface structure, providing a mechanical bonding effect with the mastic. This significantly enhances interlayer adhesion strength and completely eliminates the risk of dust or moisture penetrating between the second layer of sound absorber and the foil of the primary damping layer.
The material now features a new design and new packaging.
With a thickness of 2.1 mm, this material is ideal for treating vehicle floors, roofs, dashboards, and plastic fender liners, where precise geometric conformity and effective vibration damping are required without overloading the structure. Thanks to its balanced weight, the material is also effective for treating doors and front panels without placing excessive strain on body components. For optimal results, installation with a roller is recommended — the material offers enhanced adhesion and can be applied at temperatures as low as +10°C.
Advantages
- Ideal for confined spaces (wheel arches, under-seat areas);
- Maintains elasticity in all climatic conditions;
- Effective suppression of medium-intensity structural noise;
- mproved adhesion of the mounting layer for instant fixation;
- "Prime Satin" technology for improved layer fixation;
Recommended application areas
Specifications
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Sheet thickness, mm
2.1
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Sheet size, cm
50x70
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Weight per 1 m², kg
4.4
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MLF, c.u.
The mechanical loss factor shows how effectively the material absorbs vibration energy: 0 — the material does not damp vibration at all, 1 — ideal absorption.
0.41
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Adhesion to metal, N/cm²
How strongly the soundproofing material bonds to the metal car body: how firmly it sticks and how hard it is to tear off.
from 5
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Foil thickness, µm
120
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Sheets per pack, pcs
10
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Operating temperature range, °C
from -40 to +140
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Installation method
does not require heating
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Moisture resistance
yes


































