Navigation buoys are rotationally moulded from UV-stabilised virgin polyethylene at ASAKUA's Menemen facility. The full internal cavity is filled with closed-cell foamed polyurethane or polystyrene; the buoy remains afloat when punctured. Five models produced to IALA colour and day-marking standards cover a wide application range from small harbour entrances to open-sea navigation routes. ASAKUA is a member of IALA.
Direction buoy at harbour entrances, channel edges and shallow water hazard points, coloured to IALA standards. NB1250 and NB1750 models are standard selections for sheltered and semi-exposed waters.
Risk point, zone boundary and fish farm perimeter marking on open-sea routes. Large models NB2200, NB2600 and NB3000 are designed for offshore conditions with high freeboard, heavy mooring load capacity and extended visibility range.
Solar LED flashing lantern integrated onto the buoy completes the IALA visual day mark with night visibility. Radar enhancer, AIS AtoN and RACON options provide integration with electronic navigation systems.
Buoy body is rotationally moulded from UV-stabilised virgin polyethylene. Internal fill is selectable as closed-cell foamed polyurethane or polystyrene; metal parts are hot-dip galvanised. Five standard models span NB1250 to NB3000: diameter 1250–3000mm, height 1200–8200mm, draft 480–1100mm, freeboard 1200–5100mm, maximum mooring load 175–2,850 kg. Optional equipment: solar LED lantern, radar enhancer, AIS AtoN, RACON. Colour and day marking applied in accordance with IALA recommendations.