Permanent booms are also referred to as curtain booms however this style is distinct as the floatation is provided in the form of robust, rigid floats that are bolted onto the fabric (as opposed to foam inside a fabric pocket). The base fabric is typically a belting type material that has a high tensile strength and some natural rigidity. This relatively stiff material helps the skirt remain upright in currents. Ballast is provided by metal weights bolted or riveted to the skirt. Permanent booms are designed to be robust and durable for long term installations in locations where round the clock protection is required. This type of boom will need periodic cleaning of marine growth and maintenance

• Boom Fabric: NR Rubber (>5mm) • Boom Color : Black • Freeboard: 200 mm - Draft: 400 mm - Over height: 600 mm • Section length: 15m • Breaking Strength: ASTM D 5035 (Lengthwise : over 1200 kgf/5 cm - Widthwise :1200 kgf/5 cm) • Boom Connections: Extruded aluminum ASTM 962 (standard 1500 kgf/5 cm) • Ballast 12 mm hot dipped galvanized chain • Operational Temperature: 0 ~ +60C • Excellent UV Resistance • Chemical Resistance: acids,alkalis, solvents & hydrocarbons • Buoyancy to weight: 4:1 • Weight: 8.2kg/m