10" x 14" heavy duty, high buoyancy permanent oil containment boom, excellent for harbors, channels and seas, where maximum winds, currents, and waves combine to test the sturdy design of the Spilldam Permafence I. The barrier material for the Permafence I is made from rugged PVC-coated woven polyester belting specifically designed to be highly resistant to abrasion with UV and oxidation/Marine growth inhibitors.

The flotation system of the Permafence I is constructed of closed cell urethane foam enclosed in a high density polyethylene shell which is designed not to absorb water even if the shell is punctured.

Stability for the Permafence is achieved by the use of lead ballast properly placed and fastened with non-corrosive fasteners which will hold the boom upright under severe weather conditions.