E-A-R's Type II Vibration Damping Tiles Hold Navy QPL Status

E-A-R Specialty Composites Corporation offers two Type II vibration damping tiles approved to military specification MIL-P-23653C (SHIPS). Both the Class 1, C-2203 tile and the Class 2, C-2204 tile have qualified for the Department of the Navy Qualified Products List QPL- 23653.

Both damping tiles are composed of high-physical-strength, thermally stable, graphite-filled polyvinyl chloride alloy compounds, formulated to provide exceptionally high damping in specific temperature ranges. Class 1, C-2203 tiles are designed for optimum performance between 35 degrees F and 55 degrees F. Class 2, C-2204 tiles are used in the range from 55 degrees F to 75 degrees F. Both tiles are used for extensional and constrained-layer damping.

These tiles have special application on Ohio-class and Los Angelesclass submarines, to reduce their submerged acoustic signature by controlling interior vibration—for ballast tanks, propulsion systems, machinery frames, bulkheads, decking and other surfaces. They also are effective for surface ships to reduce resonance and impact-induced noise for hulls, engine rooms, decks and bulkheads, and where high-performance damping materials are required.

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Maritime Reporter Magazine, page 47, May 1990

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Maritime Reporter

First published in 1881 Maritime Reporter is the world's largest audited circulation publication serving the global maritime industry.