Originally formulated in 1946 by R.M. Hollingshead of Camden, NJ, Cocoon was used to mothball ships and aircraft after World War ll. Many of the mothballed aircraft were stripped of Cocoon and used again in the Korean War. The mothballed ships that have not been scrapped, remain intact after over 60 years of exposure to all weather conditions in shipyards all over the country.

Cocoon sprayable vinyl plastic coating will conform to the contour of any surface to provide a tough, flexible monolithic seal. This hermetic seal is possible due to Cocoon's unique ability to bridge openings.

Preparing a grid of paper masking tape before mothballing.
An open hatchway area is closed in with Cocoon.

A close up of the same wall.


A funnel is sealed with Cocoon.


Enclosing a deck-mounted rocket launcher. This tubular steel framework is being sealed with Cocoon.

cocoon Finished product is tested under 3 inches of negative water column. It held for the 8 hour test.