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January, 2016

3M™ Damping Aluminum Foam Sheet 4014

Product Description

3M™ Damping Aluminum Foam Sheet 4014 is an open-cell polyurethane

foam with an aluminum constraining layer on one side and a pressure

sensitive adhesive on the opposite side to facilitate attachment to the

surface of the vibrating panel. The adhesive is protected by an easy-release

liner.

How it works:

Strain energy from the vibrating panel is introduced into the viscoelastic

foam. The strain in the foam is in shear as a result of the aluminum

constraining layer. The viscous portion of the response of viscoelastic foam

results in mechanical energy being dissipated to negligible heat. This energy

dissipation results in (1) attenuated amplitudes of vibration when systems are

being continuously excited at frequencies which match their natural

frequencies, or (2) more rapid decay in systems that are freely oscillating at

their natural frequencies as a result of a momentary excitation such as an

impact.

Product Features

• Excellent damping per pound of material used and installed cost ratio.

• Easy to apply – only hand pressure required.

• Good thermal insulator and heat re ector.

• Excellent moisture resistance, aging properties and fatigue resistance.

• Meets Federal Air Regulation Flammability Speci cations for acoustical

insulation materials (FAR Section 25.853, Paragraph B).