Liberon aqua stop tough deck finish is an advanced 3 in 1 formulation of stain protection colour and timber sealer in one it has been specially formulated to suit most types of timber decking using innovative water based technology liberon aqua stop tough deck finish contains natural oils that penetrate deep into the wood to prevent damage by water and sunlight whilst guaranteeing long lasting protection against weathering its liquid formula makes it easy to apply with a matt finish which enha