WALO has world leading, established, technical engineering knowledge and the necessary modern specialist plant and equipment to provide a Dense Asphaltic Concrete (DAC) impermeable barrier system anywhere and for any situation.

WALO’s DAC lining system, made from clean aggregates, fillers, sand and bitumen is installed using specialised laying and compaction techniques. Due to its high density, DAC is extremely resistant to chemical attack, while being very strong and still flexible.