Soundown 2in Sound Shield W/Vinyl IVF1520MN32

Description

Polyether formulation that will outlast inferior polyester foams available on the market today. This polyether foam provides the highest level of hydrolytic stability in the harsh marine environment , as the dampness found in the marine environment will promote polyester foam disintegration drastically reducing the life of the foam. Acoustic insulation materials work by two processes: Absorption of sound energy, which dissipates sound as heat energy, and reflection, which reflects noise away from a location where quieting is desired.The effectiveness of absorptive material increases directly with thickness, in both the amount of energy absorbed and the range of frequencies over which absorption occurs. Bass frequencies require thicker absorptive layers. For engine noise 1/2″ is generally a minimum useful thickness while 1″ is good and 1-1/2″ to 2″ approaches the optimum with the practical considerations of effectiveness and space available. 1 lb. per sq. ft. barrier. Sheets are 32″ by 54″. (12 sq. ft.)

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