There are several waterproofing systems. The best one will depend on what you are trying to waterproof:
Water Based Polyurethane- excellent all around. Superior performance and versitility. Should always be considered for bathrooms, decks, roofs. Can be tiled or left as is.
Bitumen - good for ponds, retaining walls, roofs, planter boxes, water tanks etc
Acrylic - Very good for bathrooms and other wet areas that will be tiled. Some also suitable for roofs.
Cementitious systems - Use these when waterproofing pools, water features, ponds and concrete water tanks. Can consider for basements and planter boxes. Options available for raising damp and similar applications.
Other Waterproofing Products - Includes primers and other specialised category systems.
Remember that internal wet areas must only be waterproofed with membranes that pass all the requirements of AS4858.