3M™ Damping Foil 2552

3M™ Damping Foil 2552 consists of a room temperature pressure sensitive viscoelastic polymer on a dead soft aluminum foil and is designed for application to vibrating panels and support members. The combination of viscoelastic polymer and an aluminum foil backing (a constrained layer damper, or CLD) has proved to be a unique construction with exceptional ability to control resonant vibrations in the temperature range of 32° to 140°F (0° to 60°C), with survivability from -25° to 175°F (-32° to 80°C).

The high-energy dissipative polymer used in 3M damping foil 2552 can afford excellent control of resonance-induced vibrations. When applied to a vibrating structure, the polymer used in 3M damping foil 2552 converts vibration to negligible heat. Vibration amplitudes and structure-borne noise can be consequentially reduced. The performance of most damping devices is highly dependent on the interaction between the device and the system to which it is applied. A constrained layer control system is no different than a typical damping device and its ability to provide the desired performance is affected by parameters other than temperature and frequency. Namely the geometry, stiffness and the structure to which the control system is applied will affect the performance.

The loss factor of a material is a dynamic property that can define damping performance:

The following data are the results of 3M damping foil 2552 being tested per ASTM E756-83. A sample was applied to a 8.0 inch by 0.5 inch by 0.06 inch steel beam. The beam was tested over a temperature range of -40° to 140°F, in increments of 10°F. Beam modes 2 through 7 were monitored for system damping measurements.

Test Method: The following data were obtained by doing a frequency sweep from 1 to 100 radians/sec (0.16 to 16 Hz) at 5 different temperatures: -20°, 10°, 0°, 10°, and 22°C. A 3 point bend geometry was used on the Rheometics RSA II. Time - temperature superposition was used to create the master curve for a reference temperature of 22°C.

Data Interpolation:
To determine the damping properties at ambient temperature 72°F (22°C), proceed as follows:

1. Locate the desired frequency on the bottom HORIZONTAL scale.
2. Follow the chosen frequency up to the point of intersection with the plotted data.
3. From this intersect, go left to the vertical scale.
4. Read the COMPOSITE LOSS FACTOR for the chosen frequency.

When properly laminated between two impervious materials, the polymer will resist intermittent exposure to mild acids and alkalies, most oils, grease, gasoline, kerosene, JP-4 fuel, hydraulic fluids, and other typical aromatic and aliphatic hydrocarbon and ketone solvents.
Note: Continuous submersion in chemical solutions like solvents or fuels is not recommended.

• Excellent aging qualities of the polymer.
• Wide temperature range for damping. Usable from -25° to 175°F (-32° to 80°C), with peak damping from 32° to 140°F (0° 60°C).
• Liner on product offers the user die-cut capability.
• PSA for ease of application.

• Industrial applications.
• Electronic equipment and appliances.
• Reduce resonant noise, vibration and fatigue in metal, plastic panels and support structures.
• Almost anywhere plastic or metal contact with materials can result in potentially damaging vibration.

All statements, technical information and recommendations contained in this document are based upon tests or experience that 3M believes are reliable. However, many factors beyond 3M's control can affect the use and performance of a 3M product in a particular application, including the conditions under which the product is used and the time and environmental conditions in which the product is expected to perform. Since these factors are uniquely within the user's knowledge and control, it is essential that the user evaluate the 3M product to determine whether it is fit for a particular purpose and suitable for the user's method of application.

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