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Mica for Sound Dampening
IMERYS mica's have proven benefits in noise management.
The use of mica to improve the sound proofing characteristics of a polymeric compound is well known. Many types of minerals can be used to achieve the maximum amount of heat dissipation, but as shown in figure 2, mica remains the most efficient product to create the maximum value for tan (δ).
Figure 2:
Shucai et al Int. J. Polym. Mat vol 29 issue 1-1 pp37-42 1995)
Typical mica sound proofing applications are:
Plastic housing for electric power tools
'Under-the-bonnet' automotive parts
Bitumen panels & liners for use in automotive and domestic appliances
Water-based structural vibration damping coating for trains, boats, buses aeroplanes, cars and many other applications.
In most cases, sound proofing is not the only property desired from a polymer based composite, it is therefore important to note that mica can also provide other application benefits.
Other application benefits of Imerys Mica:
Increased flexural modulus and strength
Demonstrable cost advantages
Improved heat deflection (HDT) performance
Increased tensile strength
Improved impact properties
Decorative effects
Imerys recommends the following micas for sound proofing:
Quick View |
European Mica |
US Mica |
|---|---|---|
| Plastic parts (PP, N6^)* | M880K | L125
Suzorite 60S |
| Bitumen membranes | M880K | Suzorite 40S Suzorite 60S |
| Water-based coatings | MU 454 | C 3000 |
*See product related literature for technical work.
For detailed formulation advice please contact us.
Product Related Literature
Mica for Sound Dampening [828KB]
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IMERYS mica's have proven benefits in noise management.
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