Walnut Shell Blasting: Pioneered in 1960’S with U.S. Navy

In the 1960s, the US Navy in Norfolk, Virginia sought new methods for stripping the paint off submarines. The current method, at that time, utilized steel grit blasting to go down to bare metal, removing the anti-fouling paint, the vinyl under-coating and the primer. A very inventive civilian employee of the Navy along with Ted Diamond, of Composition Materials, pioneered a new method of blasting with Walnut Shell Grit to selectively remove only the anti-fouling paint, leaving the valuable ... More