SpraySeal NS-F300 is an elastomeric coating for waterproofing Horizontal decks, and Blindside applications, including Shot-Crete. SpraySeal NS-F300 is weather resistant, eco-friendly and safe to use. SpraySeal NS-F300 is a highly versatile elastomeric coating that is cold- applied using a spray system to impregnate a geo-textile fabric to create a durable, seamless membrane. It can be used to cover a wide variety of surfaces both indoors and outdoors. With its unsurpassed ability to expand and contract, it can easily withstand all weather conditions.